Vocabulary

  • based on: To use something as the foundation or starting point for something else.
  • date back: To have existed since a particular time in the past.
  • on the whole: Considering everything; generally.
  • for instance: As an example.
  • tear down: To demolish or destroy a building or structure.
  • around the world: In or to many countries.
  • think about: To consider something carefully.
  • without a hitch: Without any problems or difficulties; smoothly.
  • prior to: Before a particular time or event.
  • due to: Because of; owing to
  • out there: In or to a place that is far away
  • in other words: Stating something in a different way, often to make it clearer or more understandable.
  • talking about: To discuss a particular topic.
  • in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
  • game over: The end of a game or a situation.
  • take some time: To allocate or dedicate a period to a specific activity or purpose.
  • with regards to: Concerning; relating to; about.
  • tune in: To listen to a radio program or watch a television program.
  • used to: Did regularly before, but don't do now
  • phone in: Call someone by phone, often to report or notify remotely.
  • with just: Using only; with no more than.
  • of the century: The most notable or important in a hundred-year period.
  • turn into: To change to become something else
  • rather than: More exactly; more correctly
  • back up: To save a copy of your computer data
  • on the other hand : Considering a different aspect of the matter; alternatively.
  • depending on: To rely on for support (financial or emotional)
  • back then: At that time in the past.
  • as for: Concerning; regarding.
  • set off: To start a journey
  • for long: For a considerable period of time.
  • in turn: One after the other in a sequence or rotation.
  • have to: Must do
  • figure out: To understand the behavior of someone
  • for sale: (object) that people can buy
  • critical: Making a negative judgment of something
  • material: Cloth; fabric
  • demonstrate: To display a feeling or ability openly
  • pattern: Model to follow in making or doing something
  • structure: The way in which the parts of a system or object are arranged or organized, or a system arranged in this way
  • research: To study in order to discover new ideas and facts
  • desire: To wish for, hope or want something
  • industry: Hard work; being busy working
  • filter: Device to remove certain types of light, sound
  • bulk: Most of something; majority of
  • similar: Nearly the same; alike
  • surface: To give (road) a top layer
  • refer: To talk about or write about something
  • effect: An advantage, benefit
  • challenge: An activity you wish to try that may be hard to do
  • identical: The same in every way
  • distance: Lack of friendliness toward another person
  • standard: Official unit of measuring something
  • prior: Existing or coming earlier in time
  • device: Object, machine, or equipment for a specific use
  • convert: To switch from a religion, belief etc. to another
  • major: High-ranking officer in the army
  • produce: Fresh foods such as fruits and vegetables
  • layer: One of several sheets of a material or object
  • receive: To get something someone has given or sent to you
  • ratio: The relationship in relative size, etc.
  • company: Good feeling from being with someone else
  • frequency: Number of repetitions of (radio or sound) wave
  • downside: Negative aspect of something
  • single: One run in cricket or a hit baseball
  • crystal: A solid formed by the solidification of a chemical
  • boom: Very fast increase in growth or popularity
  • turn: To become (a particular age)
  • business: A company formed for making profit
  • bandwidth: Data transmission rate over the internet
  • mobile: Able to be moved or able to move
  • start: First time or place that a thing exists; beginning
  • world: All the humans, events, activities on the earth
  • degradation: Reduction in quality or character
  • acoustic: Connected with sound or hearing
  • work: The product of some artistic or literary endeavor
  • travel: To go to a place that is far away
  • interference: Unwanted involvement in the concerns of others
  • begin: To do the first part of an action; to start
  • band: Group of people who work together e.g. play music
  • datum: Item of factual information
  • mechanical: Done without thought or feeling; automatic
  • comb: Small, toothed tool to tidy your hair
  • wireless: Needing no wires to make something operate
  • semiconductor: Silicon chip used in computers
  • coil: Wire wound into circles to carry electricity
  • mask: To hide something so that it cannot be seen
  • silicon: Mineral used in making steel and computer parts
  • fabricate: To invent or create, especially to deceive, trick
  • quad: Four-sided enclosure surrounded by buildings
  • etch: To cut lines on metal to make a picture
  • quartz: Hard mineral, that is used as jewellery
  • aluminium: Very light silvery-white metal used to make cans
  • substrate: A substance which a catalyst has an effect on
  • fab: Great; wonderful
  • capacitor: Device that can temporarily store electric charge
  • mhz: Short for 'megahertz'
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  • not found vocabularyNo vocabulary matches your filters
    • acoustic

      US /əˈkustɪk/

      UK /əˈku:stɪk/

      • Adjective
      • Connected with sound or hearing
      B2
      More
    • aluminium

      US /ˌæljəˈmɪniəm/

      UK /ˌæljəˈmɪniəm/

      • Uncountable Noun
      • Very light silvery-white metal used to make cans
      B2
      More
    • around the world

      US /əˈraʊnd ði wɜrld/

      UK /əˈraund ðə wɜː(r)ld/

      • Phrase
      • In or to many countries.
      • In various places throughout the world.
      A2
      More
    • as for

      US /æz fɔr/

      UK /æz fɔ:/

      • Preposition
      • Concerning; regarding.
      • Phrase
      • Used to introduce a new topic or aspect of a subject.
      A1
      More
    • back then

      US

      UK

      • Phrase
      • At that time in the past.
      A1
      More
    • back up

      US /bæk ʌp/

      UK /bæk ʌp/

      • Phrasal Verb
      • To save a copy of your computer data
      • To confirm the truth of what someone says
      A1
      More
    • bandwidth

      US /ˈbændˌwɪdθ, -ˌwɪθ/

      UK /'bændwɪdθ/

      • Uncountable Noun
      • Data transmission rate over the internet
      B2
      More
    • based on

      US

      UK

      • Phrasal Verb
      • To use something as the foundation or starting point for something else.
      • Preposition
      • Using something as the main idea or foundation.
      • Relying on something as evidence or justification.
      A1
      More
    • boom

      US /bum/

      UK /bu:m/

      • Noun (Countable/Uncountable)
      • Very fast increase in growth or popularity
      • A very loud and deep sound
      • Intransitive Verb
      • To experience a rapid increase in growth
      • To make a very loud and deep sound
      B1
      More
    • bulk

      US /bʌlk/

      UK /bʌlk/

      • Uncountable Noun
      • Most of something; majority of
      • Big size; largeness; heaviness
      B1TOEIC
      More
    • capacitor

      US /kəˈpæsɪtɚ/

      UK /kəˈpæsɪtə(r)/

      • Noun
      • Device that can temporarily store electric charge
      C1
      More
    • challenge

      US /ˈtʃæləndʒ/

      UK /'tʃælɪndʒ/

      • Noun (Countable/Uncountable)
      • An activity you wish to try that may be hard to do
      • Act of formally inviting someone to compete
      • Transitive Verb
      • To formally invite someone to compete at something
      • To question the correctness of something
      A2
      More
    • coil

      US /kɔɪl/

      UK /kɔɪl/

      • Noun (Countable/Uncountable)
      • Wire wound into circles to carry electricity
      • Long material wound into circular rings
      • Intransitive Verb
      • To curl or wind around especially in neat rings
      B2
      More
    • comb

      US /koʊm/

      UK /kəʊm/

      • Countable Noun
      • Small, toothed tool to tidy your hair
      • Transitive Verb
      • To make your hair tidy with a straight brush
      • To search very carefully to try and find something
      B1
      More
    • convert

      US /kənˈvɚt/

      UK /kən'vɜ:t/

      • Verb (Transitive/Intransitive)
      • To switch from a religion, belief etc. to another
      • To change form, character, or function to another
      • Countable Noun
      • Person switching from one belief system to another
      A2
      More
    • critical

      US /ˈkrɪtɪkəl/

      UK /ˈkrɪtɪkl/

      • Adjective
      • Making a negative judgment of something
      • Being important or serious; vital; dangerous
      A2
      More
    • crystal

      US /ˈkrɪstəl/

      UK /'krɪstl/

      • Noun (Countable/Uncountable)
      • A solid formed by the solidification of a chemical
      • Rock with regularly repeating internal structure
      • Proper Noun
      • Person's name
      B1
      More
    • date back

      US /det bæk/

      UK /deit bæk/

      • Intransitive Verb
      • To have existed since a particular time in the past.
      • Phrasal Verb
      • To have originated at a certain time in the past.
      A1
      More
    • datum

      US /ˈdetəm, ˈdætəm, ˈdɑtəm/

      UK /ˈdeɪtəm/

      • Noun
      • Item of factual information
      B1
      More
    • degradation

      US /ˌdɛɡrəˈdeʃən/

      UK /ˌdegrəˈdeɪʃn/

      • Noun (Countable/Uncountable)
      • Reduction in quality or character
      • The act of treating someone poorly and without respect.
      B2
      More
    • demonstrate

      US /ˈdɛmənˌstret/

      UK /'demənstreɪt/

      • Verb (Transitive/Intransitive)
      • To display a feeling or ability openly
      • To protest about something often as a group
      A2TOEIC
      More
    • depending on

      US

      UK

      • Phrasal Verb
      • To rely on for support (financial or emotional)
      • Influenced or determined by.
      • Preposition
      • Subject to; contingent on
      • Relying on someone or something for support or assistance.
      A2
      More
    • desire

      US / dɪˈzaɪr/

      UK /dɪ'zaɪə(r)/

      • Transitive Verb
      • To wish for, hope or want something
      • Noun (Countable/Uncountable)
      • Thing that is wished for or wanted
      • A strong feeling of sexual wanting.
      A2
      More
    • device

      US /dɪˈvaɪs/

      UK /dɪˈvaɪs/

      • Noun (Countable/Uncountable)
      • Object, machine, or equipment for a specific use
      • Method of doing something; a way
      A2TOEIC
      More
    • distance

      US /ˈdɪstəns/

      UK /'dɪstəns/

      • Uncountable Noun
      • Lack of friendliness toward another person
      • Noun (Countable/Uncountable)
      • Amount of space between two places or things
      • A point or place that is far away.
      A2
      More
    • downside

      US /ˈdaʊnˌsaɪd/

      UK /ˈdaʊnsaɪd/

      • Noun
      • Negative aspect of something
      • The potential negative consequences or risks associated with a decision or action.
      B2
      More
    • due to

      US /du tu/

      UK /dju: tu:/

      • Preposition
      • Because of; owing to
      • Adjective
      • Attributable to; caused by.
      A1
      More
    • etch

      US /ɛtʃ/

      UK /etʃ/

      • Transitive Verb
      • To cut lines on metal to make a picture
      C1
      More
    • fab

      US /fæb/

      UK /fæb/

      • Adjective
      • Great; wonderful
      B2
      More
    • fabricate

      US /ˈfæbrɪˌket/

      UK /ˈfæbrɪkeɪt/

      • Transitive Verb
      • To invent or create, especially to deceive, trick
      • To say things that are not true to trick someone
      C1
      More
    • figure out

      US /ˈfɪɡjɚ aʊt/

      UK /ˈfiɡə aut/

      • Phrasal Verb
      • To understand the behavior of someone
      • To think through logically to find a solution
      • Verb (Transitive/Intransitive)
      • To understand or find an answer to something.
      • To find a solution to a problem or understand something.
      A1
      More
    • filter

      US /ˈfɪltɚ/

      UK /'fɪltə(r)/

      • Noun (Countable/Uncountable)
      • Device to remove certain types of light, sound
      • Device to remove unwanted things from liquid, gas
      • Transitive Verb
      • To remove certain types of light, sound
      • To remove unwanted substances from a liquid or gas
      B1
      More
    • for instance

      US /fɔr ˈɪnstəns/

      UK /fɔ: ˈinstəns/

      • Adverb
      • As an example.
      • Phrase
      • As an example.
      • As an illustration or case in point
      B1
      More
    • for long

      US

      UK

      • Phrase
      • For a considerable period of time.
      • For a significant duration in the future.
      A1
      More
    • for sale

      US /fɔr sel/

      UK /fɔ: seil/

      • Phrase
      • (object) that people can buy
      A2
      More
    • frequency

      US /ˈfrikwənsi/

      UK /'fri:kwənsɪ/

      • Uncountable Noun
      • Number of repetitions of (radio or sound) wave
      • How often something happens
      B1TOEIC
      More
    • game over

      US /geɪm ˈoʊvɚ/

      UK /geɪm ˈəuvə/

      • other
      • The end of a game or a situation.
      A2
      More
    • have to

      US /hæv tu/

      UK /ˈhæv tə/

      • Auxiliary Verb
      • Must do
      A1
      More
    • identical

      US /aɪˈdɛntɪkəl/

      UK /aɪˈdentɪkl/

      • Adjective
      • The same in every way
      • Satisfied by all values of the variables involved.
      B1
      More
    • in fact

      US /ɪn fækt/

      UK /in fækt/

      • Adverb
      • Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
      • Used to introduce a more detailed or surprising piece of information.
      • Phrase
      • Used to emphasize the truth of a statement, especially one that is surprising or contrary to what might be expected.
      C1
      More
    • in other words

      US

      UK

      • Phrase
      • Stating something in a different way, often to make it clearer or more understandable.
      More
    • in turn

      US

      UK

      • Adverb
      • One after the other in a sequence or rotation.
      A1
      More
    • interference

      US /ˌɪntərˈfɪrəns/

      UK /ˌɪntəˈfɪərəns/

      • Noun (Countable/Uncountable)
      • Unwanted involvement in the concerns of others
      • Signal interrupting a radio or television signal
      B1
      More
    • layer

      US /ˈleɚ/

      UK /ˈleiə/

      • Noun (Countable/Uncountable)
      • One of several sheets of a material or object
      • A covering of something spread over a surface.
      • Transitive Verb
      • To put things one on top of another
      B1TOEIC
      More
    • major

      US /ˈmedʒɚ/

      UK /'meɪdʒə(r)/

      • Countable Noun
      • High-ranking officer in the army
      • Main subject you study at university
      • Adjective
      • Main league; esp. referring to American baseball
      • Important, serious, or large in scope, size
      A2TOEIC
      More
    • mask

      US /mæsk/

      UK /mɑ:sk/

      • Transitive Verb
      • To hide something so that it cannot be seen
      • To hide something so that it cannot be seen
      • Noun (Countable/Uncountable)
      • Covering to hide or disguise the face
      • Way of pretending to behave that is not real
      B1
      More
    • material

      US /məˈtɪriəl/

      UK /məˈtɪəriəl/

      • Noun (Countable/Uncountable)
      • Cloth; fabric
      • Supplies or data needed to do a certain thing
      • Adjective
      • Relevant; (of evidence) important or significant
      • Belonging to the world of physical things
      A2
      More
    • mechanical

      US /mɪˈkænɪkəl/

      UK /məˈkænɪkl/

      • Adjective
      • Done without thought or feeling; automatic
      • Using or concerning machines
      B1
      More
    • mhz

      US

      UK

      • Noun
      • Short for 'megahertz'
      C1
      More
    • mobile

      US /ˈmoʊbl/

      UK /'məʊbaɪl/

      • Adjective
      • Able to be moved or able to move
      • Able to move easily from one job, place, or social class to another.
      • Countable Noun
      • Personal phone you take with you wherever you go
      • A decorative structure that is suspended so as to turn freely in the air.
      B1
      More
    • of the century

      US /ʌv ðə ˈsɛnʧəri/

      UK /əv ðə ˈsenʧəri/

      • other
      • The most notable or important in a hundred-year period.
      B2
      More
    • on the other hand

      US

      UK

      • Phrase
      • Considering a different aspect of the matter; alternatively.
      A1
      More
    • on the whole

      US /ɑn ði hol/

      UK /ɔn ðə həul/

      • Phrase
      • Considering everything; generally.
      • In summary; taking everything into consideration.
      A1
      More
    • out there

      US /aʊt ðɛr/

      UK /aut ðɛə/

      • Adverb
      • In or to a place that is far away
      • Existing in the universe
      • Adjective
      • Unconventional; strange; avant-garde
      • Existing or available.
      A1
      More
    • pattern

      US /ˈpætən/

      UK /'pætn/

      • Noun (Countable/Uncountable)
      • Model to follow in making or doing something
      • Colors or shapes which are repeated on objects
      • Transitive Verb
      • To copy the way something else is made
      • To decorate with a pattern.
      A2TOEIC
      More
    • phone in

      US /foʊn ɪn/

      UK /fəʊn ɪn/

      • other
      • Call someone by phone, often to report or notify remotely.
      B2
      More
    • prior

      US /ˈpraɪɚ/

      UK /'praɪə(r)/

      • Adjective
      • Existing or coming earlier in time
      • (Of a claim, etc.) more important than another one
      • Noun
      • Monk or priest in charge of a monastery
      B1TOEIC
      More
    • prior to

      US /ˈpraɪɚ tu/

      UK /ˈpraiə tu:/

      • Preposition
      • Before a particular time or event.
      C1
      More
    • quad

      US /kwɑ:d/

      UK /kwɒd/

      • Noun (Countable/Uncountable)
      • Four-sided enclosure surrounded by buildings
      C1
      More
    • quartz

      US /kwɔrts/

      UK /kwɔ:ts/

      • Uncountable Noun
      • Hard mineral, that is used as jewellery
      B2
      More
    • rather than

      US

      UK

      • Adverb
      • More exactly; more correctly
      • Preferably; instead
      • Preposition
      • Instead of
      A1
      More
    • ratio

      US /ˈreɪʃioʊ/

      UK /ˈreɪʃiəʊ/

      • Noun (Countable/Uncountable)
      • The relationship in relative size, etc.
      • The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
      C2
      More
    • refer

      US /rɪˈfɚ/

      UK /rɪ'fɜ:(r)/

      • Verb (Transitive/Intransitive)
      • To talk about or write about something
      • To give information about something
      A2TOEIC
      More
    • research

      US /rɪˈsɚtʃ, ˈriˌsɚtʃ/

      UK /rɪ'sɜ:tʃ/

      • Verb (Transitive/Intransitive)
      • To study in order to discover new ideas and facts
      • To study the market relating to marketing products and services.
      • Noun (Countable/Uncountable)
      • Study done to discover new ideas and facts
      • A particular area or topic of study.
      A2TOEIC
      More
    • semiconductor

      US /sɛmikənˈdʌktɚ/

      UK /ˌsemikənˈdʌktə(r)/

      • Noun
      • Silicon chip used in computers
      B1
      More
    • set off

      US /sɛt ɔf/

      UK /set ɒf/

      • Phrasal Verb
      • To start a journey
      • To cause something to explode or start working.
      • Transitive Verb
      • To cause to explode.
      A1
      More
    • silicon

      US /ˈsɪlɪkən, -ˌkɑn/

      UK /ˈsɪlɪkən/

      • Uncountable Noun
      • Mineral used in making steel and computer parts
      B2
      More
    • standard

      US /ˈstændəd/

      UK /'stændəd/

      • Noun
      • Official unit of measuring something
      • Principle of behaving in a moral way
      • Adjective
      • Being the accepted normal level of quality
      • (Of a language) being the most accepted in a place
      A2TOEIC
      More
    • structure

      US /ˈstrʌk.tʃɚ/

      UK /ˈstrʌk.tʃə/

      • Noun (Countable/Uncountable)
      • The way in which the parts of a system or object are arranged or organized, or a system arranged in this way
      • A building or other man-made object.
      • Transitive Verb
      • To plan, organize, or arrange the parts of something
      A2TOEIC
      More
    • substrate

      US /ˈsʌbˌstret/

      UK /ˈsʌbstreɪt/

      • Noun
      • A substance which a catalyst has an effect on
      B2
      More
    • surface

      US /ˈsɚfəs/

      UK /'sɜ:fɪs/

      • Transitive Verb
      • To give (road) a top layer
      • Intransitive Verb
      • To appear after being hidden, unseen, or unknown
      • To come to the top of something; emerge
      A2TOEIC
      More
    • take some time

      US

      UK

      • Verb (Transitive/Intransitive)
      • To allocate or dedicate a period to a specific activity or purpose.
      A1
      More
    • talking about

      US

      UK

      • Phrasal Verb
      • To discuss a particular topic.
      • To be constantly mentioning or bringing up a subject.
      A1
      More
    • tear down

      US /tɛr daʊn/

      UK /tiə daun/

      • Phrasal Verb
      • To demolish or destroy a building or structure.
      • To criticize someone or something severely.
      More
    • think about

      US /θɪŋk əˈbaʊt/

      UK /θiŋk əˈbaut/

      • Phrasal Verb
      • To consider something carefully.
      • To remember or call to mind.
      A1
      More
    • tune in

      US /tun ɪn/

      UK /tju:n in/

      • Phrasal Verb
      • To listen to a radio program or watch a television program.
      • To pay attention to something; to be aware of something.
      A2
      More
    • turn into

      US /tɚn ˈɪntu/

      UK /tə:n ˈɪntuː/

      • Phrasal Verb
      • To change to become something else
      • To change your direction to go into a place
      A1
      More
    • used to

      US /juzd tu/

      UK /ˈju:st tə/

      • Adjective
      • Did regularly before, but don't do now
      • Auxiliary Verb
      • Have done before, but do not do now
      A1
      More
    • wireless

      US /ˈwaɪrlɪs/

      UK /'waɪələs/

      • Adjective
      • Needing no wires to make something operate
      B2
      More
    • with just

      US

      UK

      • Phrase
      • Using only; with no more than.
      • Barely; by a narrow margin.
      A2
      More
    • with regards to

      US

      UK

      • Phrase
      • Concerning; relating to; about.
      A1
      More
    • without a hitch

      US /wɪˈðaʊt ə hɪtʃ/

      UK /wɪˈðaʊt ə hɪtʃ/

      • other
      • Without any problems or difficulties; smoothly.
      B2
      More
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    01:03

    She took a brave step forward, leaving behind her comfort zone to chase her dreams.

    Vocabulary
    • brave

      adj. Having courage

    • comfort zone

      phr. A familiar situation where one feels safe

    Explanation
    a brave step is a noun phrase, where brave is an adjective modifying the noun step, meaning "a courageous step". forward is an adverb modifying step, meaning "ahead". The whole phrase serves as the object, answering the "what" of took (verb) — she took a brave step forward.

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    brave

    US/brev/
    UK/breɪv/
    adj.Brave
    v.t.To bravely face
    A2 Elementary

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    B1US
    #rf#filter#iphone#acoustic#frequency#radio

    The iPhone Forever Changed the RF Filter

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    中田駿介 posted on 2025/12/21
    Ever wondered how your iPhone gets such amazing signal strength? This video dives deep into the fascinating world of RF filters, explaining how the iPhone 5 revolutionized this tech with components from companies like Broadcom. You'll pick up some seriously advanced vocabulary related to electronics and gain a cool insight into the history of mobile technology!

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