- a person who has special skill or knowledge in some particular field; specialist; authority: a language expert.
- Military.
- the highest rating in rifle marksmanship, above that of marksman and sharpshooter.
- a person who has achieved such a rating.
- possessing special skill or knowledge; trained by practice; skillful or skilled (often followed by in or at): an expert driver;to be expert at driving a car.
- pertaining to, coming from, or characteristic of an expert: expert work;expert advice.
- to act as an expert for.
- a person who has extensive skill or knowledge in a particular field
- skilful or knowledgeable
- of, involving, or done by an expert
