a person who has special skill or knowledge in some particular field; specialist; authority: a language expert.
2.
Military.
a.
the highest rating in rifle marksmanship, above that of marksman and sharpshooter.
b.
a person who has achieved such a rating.
adjective
3.
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.
4.
pertaining to, coming from, or characteristic of an expert: expert work; expert advice.
verb (used with object)
5.
to act as an expert for.
Origin: 1325–75;Middle English (adj.) < Latinexpertus, past participle of experīrī to try, experience
Related forms
ex·pert·ly, adverb
ex·pert·ness, noun
non·ex·pert, noun, adjective
pro·ex·pert, adjective
un·ex·pert, adjective
Synonyms 1. connoisseur, master. 3. experienced, proficient, dexterous. See skillful.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a chattering or flighty, light-headed person.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a gadget; dingus; thingumbob.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
late 14c., from L. expertus, pp. of experiri "to try, test" (see experience). The n. sense of "person wise through experience" existed 15c., reappeared 1825.