noun
expert
EHK-spurt
noun
1
A person with deep knowledge or skill in a particular field.
"She consulted an expert before investing in the stock market."
"He's an expert in ancient Roman history."
adj
1
Having great skill or knowledge in a subject.
"The surgeon gave an expert opinion on the risks."
How to Use Expert
Learner’s notesIn plain EnglishSomeone (or something) with a high level of skill or knowledge.
Common pairings
expert advice
expert opinion
leading expert
Word Forms
more expert comparative, experted past tense, experts plural, experts singular, most expert superlative
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Etymology
From Old French expert, from Latin expertus, "tried, proven," the past participle of experiri ("to try") — related to "experience."