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Vocabulary

  • think of: To look on as (being something specific); consider
  • such as: For example; like
  • think about: To consider something carefully.
  • come from: To have as your native country or city
  • based on: To use something as the foundation or starting point for something else.
  • evidence of: Facts, objects, or signs that make you believe that something is true.
  • instead of: When one thing is replaced by another
  • at home: In one's own residence or country.
  • for example: As an illustration or instance.
  • behind the scenes: Secretly or without being known to the public.
  • complete picture: A thorough and comprehensive understanding of a situation or event.
  • look at: To use your eyes to focus on something
  • subscribe: To regularly pay to receive a service
  • entire: Complete or full; with no part left out; whole
  • evidence: Factual proof that helps to establish the truth
  • period: Set amount of time during which events take place
  • infrastructure: Basic necessary equipment for a country or region
  • integrity: Quality of being honest, fair and honorable
  • expect: To believe something is probably going to happen
  • random: Chosen, done without a particular plan or pattern
  • claim: To say that something is true, often without proof.
  • sentence: (Of a judge) to decide the punishment of
  • imagine: To think creatively about; form mental picture of
  • suppose: To imagine or guess what might happen
  • establish: To set or create something to last for a long time
  • authority: The power to give orders to people
  • issue: To make something available to be used or sold
  • similar: Nearly the same; alike
  • signature: Something that represents a person's work or style
  • address: Exact street location of a place
  • private: Being away from others and quiet
  • validation: Act of finding or testing the truth of something
  • security: Department in a company in charge of protection
  • account: An advantage
  • involve: To have or be included as a part of something
  • secure: To get or achieve something with certainty
  • identity: Collection of qualities that makes a person
  • create: To make, cause, or bring into existence
  • actual: Real or existing in fact, not imagined; real
  • authenticity: Quality of being genuine, not a fake or copy
  • valid: Being in effect or in force, often legally
  • relate: To demonstrate a logical relationship between
  • connection: Something that joins things together; being joined
  • role: Character played by an actor
  • certificate: Official paper accepted as proof of something
  • correct: Being suitable and appropriate for an occasion
  • intermediate: Between; in the middle; moderate
  • framework: Skeleton structure of a building or construction
  • digital: Using electronic signals or computers
  • receive: To get something someone has given or sent to you
  • notice: To become aware by sight, touch, or hearing
  • lot: What happens to a person in life from chance; fate
  • sign: Indication that something exists or will happen
  • domain: A field of knowledge, thought or influence
  • verify: To prove that something is right, accurate or true
  • arrow: Symbol used on road signs to show direction
  • hash: A mixture of meat, potatoes, and vegetables cut into small pieces and baked or fried
  • calculate: To find an answer using mathematics
  • browser: Software that lets you search for information
  • passport: Official book of identification allowing travel
  • fingerprint: Generic term for any identifying characteristic
  • airport: A place where passenger planes land and take off
  • padlock: Portable lock that can be opened with a key
  • logo: Name, symbol or picture which represents a company
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  • not found vocabularyNo vocabulary matches your filters
    • actual

      US /ˈæktʃuəl/

      UK /ˈæktʃuəl/

      • Adjective
      • Real or existing in fact, not imagined; real
      • Current; existing at the present time.
      A2TOEIC
      More
    • airport

      US /ˈerpɔ:rt/

      UK /ˈeəpɔ:t/

      • Noun
      • A place where passenger planes land and take off
      B1TOEIC
      More
    • arrow

      US /ˈæroʊ/

      UK /ˈærəʊ/

      • Noun
      • Symbol used on road signs to show direction
      • A long pointed piece of wood shot from a bow
      B1
      More
    • at home

      US /æt hom/

      UK /æt həum/

      • Phrase
      • In one's own residence or country.
      • Adjective
      • Feeling comfortable and relaxed.
      More
    • authenticity

      US /ˌɔθənˈtɪsətɪ/

      UK /ˌɔ:θenˈtɪsəti/

      • Uncountable Noun
      • Quality of being genuine, not a fake or copy
      B1
      More
    • authority

      US /əˈθɔrɪti, əˈθɑr-, ɔˈθɔr-, ɔˈθɑr-/

      UK /ɔ:ˈθɒrəti/

      • Noun (Countable/Uncountable)
      • The power to give orders to people
      • Person who is an expert on a particular topic
      A2TOEIC
      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
    • behind the scenes

      US

      UK

      • Phrase
      • Secretly or without being known to the public.
      • In a position to influence events without any public knowledge.
      A1
      More
    • browser

      US /ˈbraʊzɚ/

      UK /ˈbraʊzə(r)/

      • Noun
      • Software that lets you search for information
      B1TOEIC
      More
    • calculate

      US /ˈkælkjəˌlet/

      UK /'kælkjʊleɪt/

      • Transitive Verb
      • To find an answer using mathematics
      • To make an educated guess about something
      B2
      More
    • certificate

      US /sərˈtɪfɪkət/

      UK /səˈtɪfɪkət/

      • Noun (Countable/Uncountable)
      • Official paper accepted as proof of something
      B1
      More
    • claim

      US /klem/

      UK /kleɪm/

      • Noun (Countable/Uncountable)
      • To say that something is true, often without proof.
      • A statement that something is true.
      • Transitive Verb
      • To demand or ask for something that you believe is rightfully yours.
      • To take or cause the loss of (e.g., a life, property).
      A2
      More
    • come from

      US /kʌm frʌm/

      UK /kʌm frɔm/

      • Phrasal Verb
      • To have as your native country or city
      A1
      More
    • complete picture

      US

      UK

      • Noun
      • A thorough and comprehensive understanding of a situation or event.
      More
    • connection

      US /kəˈnɛkʃən/

      UK /kəˈnekʃn/

      • Noun (Countable/Uncountable)
      • Something that joins things together; being joined
      • Person you know who can help you in some way
      A2
      More
    • correct

      US /kəˈrɛkt/

      UK /kə'rekt/

      • Adjective
      • Being suitable and appropriate for an occasion
      • True or accurate
      • Transitive Verb
      • To fix a problem
      • To write marks on a piece of work to show mistakes
      A2
      More
    • domain

      US /doʊˈmeɪn/

      UK /dəˈmeɪn/

      • Noun (Countable/Uncountable)
      • A field of knowledge, thought or influence
      • Area that a ruler or government controls
      B1
      More
    • entire

      US /ɛnˈtaɪr/

      UK /ɪn'taɪə(r)/

      • Adjective
      • Complete or full; with no part left out; whole
      • Undivided; not shared or distributed.
      A2TOEIC
      More
    • establish

      US /ɪˈstæblɪʃ/

      UK /ɪˈstæblɪʃ/

      • Transitive Verb
      • To set or create something to last for a long time
      • To use facts, evidence to show truth or clarity
      A2TOEIC
      More
    • evidence of

      US

      UK

      • Phrase
      • Facts, objects, or signs that make you believe that something is true.
      • Something that shows that something else exists or is true.
      A1
      More
    • fingerprint

      US /ˈfɪŋɡɚˌprɪnt/

      UK /'fɪŋɡəprɪnt/

      • Noun (Countable/Uncountable)
      • Generic term for any identifying characteristic
      B2
      More
    • for example

      US

      UK

      • Phrase
      • As an illustration or instance.
      More
    • framework

      US /ˈfreɪmwɜ:rk/

      UK /ˈfreɪmwɜ:k/

      • Noun
      • Skeleton structure of a building or construction
      • Basic structure of something
      B1TOEIC
      More
    • hash

      US /hæʃ/

      UK /hæʃ/

      • Noun (Countable/Uncountable)
      • A mixture of meat, potatoes, and vegetables cut into small pieces and baked or fried
      • The symbol # on a phone or computer keyboard
      C1
      More
    • identity

      US /aɪˈdɛntɪti/

      UK /aɪ'dentətɪ/

      • Noun (Countable/Uncountable)
      • Collection of qualities that makes a person
      • Who someone is; the name of a person
      B1
      More
    • infrastructure

      US /ˈɪnfrəˌstrʌktʃɚ/

      UK /'ɪnfrəstrʌktʃə(r)/

      • Uncountable Noun
      • Basic necessary equipment for a country or region
      • The underlying framework or system of an organization.
      B1
      More
    • instead of

      US /ɪnˈstɛd ʌv/

      UK /inˈsted ɔv/

      • Preposition
      • When one thing is replaced by another
      • Adverb
      • As a substitute or alternative.
      A1
      More
    • integrity

      US /ɪnˈtɛɡrɪti/

      UK /ɪnˈtegrəti/

      • Uncountable Noun
      • Quality of being honest, fair and honorable
      • The state of being whole and undivided.
      B1TOEIC
      More
    • intermediate

      US /ˌɪntɚˈmidiɪt/

      UK /ˌɪntəˈmi:diət/

      • Adjective
      • Between; in the middle; moderate
      • Having some knowledge but not advanced
      • Noun (Countable/Uncountable)
      • Person with some knowledge but not advanced
      • Something that comes between two things in time, place, character, etc.
      B1
      More
    • involve

      US /ɪnˈvɑlv/

      UK /ɪn'vɒlv/

      • Transitive Verb
      • To have or be included as a part of something
      • To cause (a person or group) to take part in an event or activity.
      A2TOEIC
      More
    • issue

      US /ˈɪʃu/

      UK /'ɪʃu:/

      • Transitive Verb
      • To make something available to be used or sold
      • To deliver a statement, etc. in an official manner
      • Noun (Countable/Uncountable)
      • Important topic discussed, debated or argued over
      • Single edition of a magazine
      A2TOEIC
      More
    • logo

      US /ˈloˌɡo/

      UK /'ləʊɡəʊ/

      • Noun
      • Name, symbol or picture which represents a company
      B2TOEIC
      More
    • look at

      US /lʊk æt/

      UK /luk æt/

      • Phrasal Verb
      • To use your eyes to focus on something
      • To focus your eyes on something carefully
      A1
      More
    • padlock

      US /ˈpædlɑ:k/

      UK /ˈpædlɒk/

      • Noun
      • Portable lock that can be opened with a key
      C1
      More
    • passport

      US /ˈpæspɔ:rt/

      UK /ˈpɑ:spɔ:t/

      • Countable Noun
      • Official book of identification allowing travel
      • Noun
      • Way to achieve something
      B1TOEIC
      More
    • random

      US /ˈrændəm/

      UK /'rændəm/

      • Adjective
      • Chosen, done without a particular plan or pattern
      B1
      More
    • relate

      US /rɪˈlet/

      UK /rɪ'leɪt/

      • Transitive Verb
      • To demonstrate a logical relationship between
      • To understand or sympathize with, e.g. a problem
      A2TOEIC
      More
    • role

      US /rol/

      UK /rəʊl/

      • Noun
      • Character played by an actor
      • Part you play in an activity; job; responsibility
      A2
      More
    • secure

      US /sɪˈkjʊr/

      UK /sɪ'kjʊə(r)/

      • Transitive Verb
      • To get or achieve something with certainty
      • To firmly attach something to something else
      • Adjective
      • Being attached to something tightly and surely
      • (Place that is) locked, guarded and safe
      A2TOEIC
      More
    • security

      US /sɪˈkjʊrɪti/sə'kjurətɪ/

      UK /sɪ'kjʊərətɪ/

      • Noun
      • Department in a company in charge of protection
      • Financial document, like stocks, bonds and notes
      A2TOEIC
      More
    • signature

      US /ˈsɪɡnətʃɚ/

      UK /ˈsɪgnətʃə(r)/

      • Adjective
      • Something that represents a person's work or style
      • Noun (Countable/Uncountable)
      • Person's name written in their handwriting
      • The key in which a piece of music is written, indicated by sharps or flats at the beginning of the stave.
      B1
      More
    • subscribe

      US /səbˈskraɪb/

      UK /səb'skraɪb/

      • Verb (Transitive/Intransitive)
      • To regularly pay to receive a service
      B1TOEIC
      More
    • such as

      US /sʌtʃ æz/

      UK /sʌtʃ æz/

      • Preposition
      • For example; like
      A1
      More
    • suppose

      US /səˈpoʊz/

      UK /sə'pəʊz/

      • Verb (Transitive/Intransitive)
      • To imagine or guess what might happen
      • Conjunction
      • What if
      A2TOEIC
      More
    • think about

      US /θɪŋk əˈbaʊt/

      UK /θiŋk əˈbaut/

      • Phrasal Verb
      • To consider something carefully.
      • To remember or call to mind.
      A1
      More
    • think of

      US /θɪŋk ʌv/

      UK /θiŋk ɔv/

      • Phrasal Verb
      • To look on as (being something specific); consider
      • To consider or remember something.
      • Verb (Transitive/Intransitive)
      • To imagine or call something to mind
      A1
      More
    • valid

      US /ˈvælɪd/

      UK /'vælɪd/

      • Adjective
      • Being in effect or in force, often legally
      • Reasonable; based on sound assumptions
      A2TOEIC
      More
    • validation

      US /ˌvælɪ'deɪʃn/

      UK /ˌvælɪ'deɪʃn/

      • Uncountable Noun
      • Act of finding or testing the truth of something
      • In computer science, the process of ensuring that data meets certain criteria before it is processed.
      B2
      More
    • verify

      US /ˈvɛrəˌfaɪ/

      UK /'verɪfaɪ/

      • Transitive Verb
      • To prove that something is right, accurate or true
      B2TOEIC
      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
    #certificate#public key#browser#digital#ca#public

    Digital Signatures, Certificates, CAs and PKI Explained | How HTTPS Trust Really Works

    0
    劉佳怡 posted on 2026/10/23
    Ever wonder how your browser actually knows it is talking to your bank instead of an imposter? This video breaks down the technical magic of digital signatures, certificates, and PKI in a way that makes sense. It is a fantastic opportunity to master essential cybersecurity vocabulary while learning how the internet builds trust behind the scenes.

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