How to use expert in a sentence. a person with a high level of knowledge or skill relating to a particular subject or activity…. Expert advice or help is given by someone who has studied a subject thoroughly or who is very skilled at a particular job. We'll need an expert opinion. An expert is someone who knows a ton about the subject at hand. The adjective form of expert describes someone or something that has that special knowledge. If you get expert instruction, that … Apr 6, 2026 · expert (comparative more expert, superlative most expert) Extraordinary capable or knowledgeable. possessing special skill or knowledge. pertaining to or characteristic of an expert: expert advice. Expert definition: A person with a high degree of skill in or knowledge of a certain subject.
