One who has made considerable advances in any business, art, science, or branch of learning; an expert; an adept; as, proficient in a trade; a proficient in mathematics, music, etc.
Well advanced in any branch of knowledge or skill; possessed of considerable acquirements; well-skilled; versed; adept,
Taught by use, practice, or experience, experienced; having facility of operation or performance from practice; knowing and ready from much practice; clever; skillful; as, an expert surgeon; expert in chess or archery.
An expert or experienced person; one instructed by experience; one who has skill, experience, or extensive knowledge in his calling or in any special branch of learning.
A specialist in a particular profession or department of science requiring for its mastery peculiar culture and erudition.
A sworn appraiser.
To experience.