absolute
US /ˈæbsəˌlut/
UK /ˈæbsəlu:t/
- Adjective
- Complete; total; pure; not limited in any way
- Not capable of being doubted or questioned; certain.
- Noun (Countable/Uncountable)
- Something that is complete, total, pure, certain
- (in philosophy) a concept of an ultimate, unconditional reality
A2Moreat once
US /æt wʌns/
UK /æt wʌns/
- Adverb
- Immediately; without delay
- At the same time; simultaneously
A2Morebunch
US /bʌntʃ/
UK /bʌntʃ/
- Noun (Countable/Uncountable)
- A group of things of the same kind
- A group of people.
- Transitive Verb
- To group people or things closely together
B1Morecheck out
US /tʃɛk aʊt/
UK /tʃek aut/
- Phrase
- Phrasal Verb
- To find out information about something
- To take books out of a library
A1Morecomment
US /ˈkɑmɛnt/
UK /'kɒment/
- Noun (Countable/Uncountable)
- Something you say, giving an opinion; remark
- An explanatory note in a computer program.
- Verb (Transitive/Intransitive)
- To say something that gives your opinion
- To add explanatory notes to a computer program.
A2Morecomprehensive
US /ˌkɑ:mprɪˈhensɪv/
UK /ˌkɒmprɪˈhensɪv/
- Adjective
- Including most or all things
B1TOEICMorecontinuous
US /kənˈtɪnjuəs/
UK /kənˈtɪnjuəs/
- Adjective
- Happening, existing, or performed without stops
- Extending or prolonged without interruption or cessation.
A2Moreconvention
US /kənˈvɛnʃən/
UK /kənˈvenʃn/
- Noun (Countable/Uncountable)
- Official agreement between two or more countries
- Large formal assembly, e.g. to make laws
- Adjective
- Concerning a large formal assembly or meeting
A2TOEICMorederivative
US /dɪˈrɪvətɪv/
UK /dɪˈrɪvətɪv/
- Adjective
- Not from original ideas; from somewhere else
B1TOEICMorefunction
US /ˈfʌŋkʃən/
UK /'fʌŋkʃn/
- Noun
- Social event, or party such as a wedding
- Mathematical operation used in calculations
- Intransitive Verb
- To serve a certain purpose or role
- To be operating, working or achieving its purpose
A2TOEICMorehelpful
US /ˈhɛlpfəl/
UK /ˈhelpfl/
- Adjective
- Doing things that help someone
A2Moreinfinitely
US /ˈɪnfənɪtlɪ/
UK /ˈɪnfɪnətli/
- Adverb
- Continuing forever without end; very great
B2Moreinfinity
US /ɪnˈfɪnɪti/
UK /ɪn'fɪnətɪ/
- Uncountable Noun
- State of being without end; endless time, space
B2Moremath
US /mæθ/
UK /mæθ/
- Uncountable Noun
- Study or science of numbers and shapes
A2Morenotation
US /noˈteʃən/
UK /nəʊ'teɪʃn/
- Noun
- Set of written signs are used in music or math
C2Moreout of the way
US /aʊt ʌv ði we/
UK /aut ɔv ðə wei/
- Adjective
- Remote; isolated.
- No longer obstructing or hindering.
- Phrase
- Not obstructing or impeding progress; in a position where one does not cause an obstruction.
- Completed; finished; no longer needing attention.
B1Morepi
US /paɪ/
UK /paɪ/
- Noun
- The ratio of the circumference to the diameter
B2Moresection
US / ˈsɛkʃən/
UK /'sekʃn/
- Noun (Countable/Uncountable)
- A part of a whole
- Specific group of people from a larger group
- Transitive Verb
- To divide something into smaller parts
B1TOEICMoresine
US /saɪn/
UK /saɪn/
- Noun
- Angle's ratio of side opposite hypotenuse
C1Moresmooth
US /smuð/
UK /smu:ð/
- Adjective
- Moving without stops and starts
- Pleasant and flat to touch, not rough
- Transitive Verb
- To make something rough feel flat, e.g. by ironing
- To spread a substance over a surface
A2Moresquare
US /skwɛr/
UK /skweə(r)/
- Noun (Countable/Uncountable)
- Shape with 4 equal length sides and 4 equal angles
- The result of multiplying Length by the width
- Adjective
- Being fair or honest
- Multiply a number by itself e.g. 2x2 or 6x6
A2TOEICMoresubscribe
US /səbˈskraɪb/
UK /səb'skraɪb/
- Verb (Transitive/Intransitive)
- To regularly pay to receive a service
B1TOEICMoretalking about
US
UK
- Phrasal Verb
- To discuss a particular topic.
- To be constantly mentioning or bringing up a subject.
A1Moretopic
US /ˈtɑpɪk/
UK /'tɒpɪk/
- Noun (Countable/Uncountable)
- Subject or issue people talk or write about
A2TOEICMoretransition
US /trænˈzɪʃən, -ˈsɪʃ-/
UK /trænˈzɪʃn/
- Noun
- Change from one state, movement, place to another
- Intransitive Verb
- To change state, movement, place, or subject
B1Morevideo
US /ˈvɪdiˌo/
UK /'vɪdɪəʊ/
- Noun (Countable/Uncountable)
- Recording capturing action with sound
- A recording of moving visual images made digitally or on videotape.
- Transitive Verb
- To make a moving film of, with sound
- To make a video call.
A2More
Vocabulary
- talking about: To discuss a particular topic.
- out of the way: Remote; isolated.
- at once: Immediately; without delay
- check out
- subscribe: To regularly pay to receive a service
- bunch: A group of things of the same kind
- common: Area in a city or town that is open to everyone
- comment: Something you say, giving an opinion; remark
- exist: To be present, alive or real
- function: Social event, or party such as a wedding
- similar: Nearly the same; alike
- explain: To make clear or easy to understand by describing
- section: A part of a whole
- transition: Change from one state, movement, place to another
- comprehensive: Including most or all things
- rest: Time when one relaxes, sleeps, or is inactive
- convention: Official agreement between two or more countries
- topic: Subject or issue people talk or write about
- absolute: Complete; total; pure; not limited in any way
- leave: To go away from; depart
- haven: Place where people can feel safe and happy
- square: Shape with 4 equal length sides and 4 equal angles
- order: Religious or social group, as of nuns
- infinitely: Continuing forever without end; very great
- great: Very good; better than before
- find: To become aware of something that is happening
- infinity: State of being without end; endless time, space
- smooth: Moving without stops and starts
- make: To arrange or prepare something e.g. dinner
- start: First time or place that a thing exists; beginning
- understand: To know the meaning of language, what someone says
- check: Paper showing how much you owe at a restaurant
- list: To lean to one side, like a boat or ship
- continuous: Happening, existing, or performed without stops
- video: Recording capturing action with sound
- derivative: Not from original ideas; from somewhere else
- helpful: Doing things that help someone
- notation: Set of written signs are used in music or math
- math: Study or science of numbers and shapes
- sine: Angle's ratio of side opposite hypotenuse
- pi: The ratio of the circumference to the diameter
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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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What is a smooth function?
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陳昱安 posted on 2025/11/10Ever wondered what makes a function 'smooth'? This video from Walton Pi dives into differentiability and higher derivatives, perfect for boosting your math vocabulary! You'll get a clear explanation of concepts like C-infinity functions and see some cool counterexamples along the way.
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