proficient, adept, skilled, skillful, expert mean having great knowledge and experience in a trade or profession. proficient implies a thorough competence derived from training and practice.

EXPERT definition: 1. a person with a high level of knowledge or skill relating to a particular subject or activity…. Learn more.

EXPERT definition: a person who has special skill or knowledge in some particular field; specialist; authority. See examples of expert used in a sentence.

2. possessing special skill or knowledge. 3. pertaining to or characteristic of an expert: expert advice.

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 …

Definition of expert noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 24, 2025 · expert (comparative more expert, superlative most expert) Extraordinary capable or knowledgeable.

Expert definition: A person with a high degree of skill in or knowledge of a certain subject.

An expert is somebody who has a broad and deep understanding and competence in terms of knowledge, skill and experience through practice and education in a particular field.

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.