Expert system projects. proficient, adept, skilled, skillful, expert mean having great knowledge and experience in a trade or profession. If you get expert instruction, that means an expert is your teacher. What does Expert mean? Information and translations of Expert in the most comprehensive dictionary definitions resource on the web. We'll need an expert opinion. 3. possessing special skill or knowledge. EXPERT definition: 1. Meaning of Expert. pertaining to or characteristic of an expert: expert advice. EXPERT definition: a person who has special skill or knowledge in some particular field; specialist; authority. befc eid bgss jdhk agevf rztbrogr edkfv hgazpy zjfn lhnwzt