expert

[ noun verb ek-spurt; adjective ek-spurt, ik-spurt ]

noun

1. a person who has special skill or knowledge in some particular field; specialist; authority:

   a language expert.

   Synonyms: master, connoisseur

2. Military.
   1. the highest rating in rifle marksmanship, above that of marksman and sharpshooter.
   2. a person who has achieved such a rating.

adjective

1. 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.

   Synonyms: dexterous, proficient, experienced

   Antonyms: unskillful

2. pertaining to, coming from, or characteristic of an expert:

   expert work;

   expert advice.

verb (used with object)

1. to act as an expert for.

expert

/ ˈɛkspɜːt /

noun

1. a person who has extensive skill or knowledge in a particular field

adjective

1. skilful or knowledgeable
2. of, involving, or done by an expert

   an expert job

Derived Forms

• ˈexpertness, noun
• ˈexpertly, adverb

Other Words From

• ex·pertly adverb
• ex·pertness noun
• non·expert noun adjective
• pro·expert adjective
• unex·pert adjective

Word History and Origins

Origin of expert¹

First recorded in 1325–75; Middle English, from Latin expertus “tried,” past participle of experīrī “to try”; experience

Word History and Origins

Origin of expert¹

C14: from Latin expertus known by experience, from experīrī to test; see experience

Synonym Study

See skillful.

Example Sentences

This definition not only ignores cerebral palsy as a lifelong condition but contributes to a lopsided research focus directed only at pediatric care and not care into adulthood and across the lifespan, experts say.

From Science Daily

But other experts suggest this would amount only to a few thousand people per year - and attempt to seriously ramp up numbers may become politically toxic.

From BBC

But homeless experts and advocates who have reviewed public statements from Trump and his closest advisors and donors have identified a number of possible changes.

From Los Angeles Times

Ecocide is defined by experts as a "wanton" act of destruction, carried out with "reckless disregard for damage which would be clearly excessive in relation to the social and economic benefits anticipated."

From Salon

The virus was also detected in pigs for the first time recently, which concerns experts because this gives the pathogen another mammalian reservoir that could raise the risk of a pandemic like COVID-19.

From Salon

Related Words

• artist
• authority
• professional