specialist
Americannoun
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a person who is devoted to one subject or to one particular branch of a subject or pursuit.
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a medical practitioner who devotes attention to a particular class of diseases, patients, etc.
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U.S. Army. an enlisted person of one of four grades having technical or administrative duties, the grades corresponding to those of corporal through sergeant first class but not requiring the exercise of command.
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Stock Exchange. a member of an exchange who buys and sells a single stock or a particular group of stocks in their own name or for other stockbrokers and thus helps maintain the market in those securities on that exchange.
noun
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a person who specializes in or devotes himself to a particular area of activity, field of research, etc
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( as modifier )
specialist knowledge
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an enlisted rank in the US Army denoting technical qualifications that entitle the holder to a noncommissioned officer's pay
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ecology an organism that has special nutritional requirements and lives in a restricted habitat that provides these Compare generalist
Other Word Forms
Etymology
Origin of specialist
Explanation
A specialist has an area of expertise in a profession or branch of learning. Call an ear, nose, and throat specialist if you can’t shake a stuffy nose, but go to a Shakespeare specialist to learn about King Lear. Specialist started off as a word used just for doctors who focused particular diseases or parts of the body, but now a specialist can be someone with a narrow focus in any field. A specialist is any professional with a specialty — lawyers are specialists because each lawyer deals with a specific kind of legal work. To be a specialist you have to study or get experience in a specific field for a long time.
Vocabulary lists containing specialist
The Perks of Being a Wallflower
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National Nurses Week: Hospital People and Places
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Things Not Seen
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
French advertising company Publicis reached a deal to acquire the data specialist for a total enterprise value of $2.2 billion.
From Barron's • May 18, 2026
A fire at a landfill site in Fife has continued into a fifth day with three fire crews and specialist appliances still working to extinguish the flames.
From BBC • May 16, 2026
But Vincent Foucher, a specialist on Nigerian conflicts with France's National Centre for Scientific Research, told AFP the latest claim is "more plausible" because the US is "quite precise".
From Barron's • May 16, 2026
The family then spent two years fighting for a specialist school placement which was "very stressful".
From BBC • May 16, 2026
Everyone’s idea of the perfect dad and former army-communications specialist who always puts his family and country first.
From "Time Bomb" by Joelle Charbonneau
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
