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expertise

noun/ˌɛkspɜrˈtiːz/

definition

having a high level of skill or knowledge in a particular area

example

Her expertise in digital marketing helped the company increase its online presence significantly.

synonyms
skillproficiencycompetence
word origin — from French 'expertise', derived from 'expert' which comes from Latin 'expertus', meaning 'to have tried, to have experienced'.

expertise, prompt, eradication, ratio, accessibility: meanings and examples

Learn these 5 words from IELTS Vocabulary set 151. Each entry includes a definition, example sentence, pronunciation, and synonyms. Use the interactive cards above to practice them.

  1. expertise · noun/ˌɛkspɜrˈtiːz/

    having a high level of skill or knowledge in a particular area

    Her expertise in digital marketing helped the company increase its online presence significantly.

    Synonyms: skill, proficiency, competence

    Origin: from French 'expertise', derived from 'expert' which comes from Latin 'expertus', meaning 'to have tried, to have experienced'.

  2. prompt · noun/prɑːmpt/

    a cue or signal to act or respond

    The teacher provided a prompt to encourage students to start writing their essays.

    Synonyms: signal, cue, reminder

    Origin: derived from the Latin word 'promptus', meaning 'brought to light, ready, or quick'.

  3. eradication · noun/ɪˌrædɪˈkeɪʃən/

    the complete destruction or removal of something

    The eradication of poverty is essential for improving the quality of life for millions around the world.

    Synonyms: elimination, removal, obliteration

    Origin: from Latin 'eradicatio', from 'eradicare' meaning 'to root out', from 'e-' (out) and 'radix' (root)

  4. ratio · noun/ˈreɪʃoʊ/

    a relationship between two quantities expressed as the quotient of one divided by the other

    The ratio of students to teachers in the school is 15 to 1, indicating a strong focus on personalized education.

    Synonyms: proportion, relationship, correlation

    Origin: from Latin 'ratio', meaning 'reckoning, calculation'

  5. accessibility · noun/ækˌsɛsəˈbɪləti/

    the quality of being easy to obtain or reach

    The city has made significant improvements to the accessibility of public transportation, ensuring that it is easy for everyone to use.

    Synonyms: availability, attainability, approachability

    Origin: The word 'accessibility' originates from the Latin 'accessibilis', meaning 'approachable'. This is derived from 'accessus', meaning 'a coming to', which in turn comes from 'accedere', meaning 'to approach'.