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'.
IELTS Vocabulary — Set 151
Set 151 of IELTS Vocabulary covers 5 words: expertise, prompt, eradication, ratio, accessibility. Each entry below includes its definition, an example sentence, and synonyms — practice them with the interactive cards above.
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'.
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'.
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)
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'
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.
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'.