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ex·​pert ˈek-ˌspərt How to pronounce expert (audio)
: one with the special skill or knowledge representing mastery of a particular subject


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: having, involving, or displaying special skill or knowledge derived from training or experience
obsolete : experienced
expertly adverb
expertness noun


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ex·​pert ˈek-ˌspərt How to pronounce expert (audio)
experted; experting; experts

intransitive verb

: to serve as an expert
Choose the Right Synonym for expert

proficient, adept, skilled, skillful, expert mean having great knowledge and experience in a trade or profession.

proficient implies a thorough competence derived from training and practice.

proficient in translating foreign languages

adept implies special aptitude as well as proficiency.

adept at doing long division

skilled stresses mastery of technique.

a skilled surgeon

skillful implies individual dexterity in execution or performance.

skillful drivers

expert implies extraordinary proficiency and often connotes knowledge as well as technical skill.

expert in the evaluation of wines

Examples of expert in a Sentence

Noun She was an acknowledged expert on child development. an expert at planning dinner parties Adjective We received some expert advice. The company has become expert at adapting its products for new clients.
Recent Examples on the Web
Review current best practices and involve subject matter experts to help devise a plan to address the issues. Charlotte Observer, 8 Feb. 2024 If filled to its maximum capacity, the bone could probably hold around 4,000 seeds, experts said. Moira Ritter, Miami Herald, 8 Feb. 2024 The discovery of oil and natural gas in the Aral's former seabed brought the building of gas production facilities — and shows Uzbekistan has little interest in restoration, experts said. Victoria Milko, Quartz, 8 Feb. 2024 Royal experts and commentators have said the household’s intentions were candid, noble and well-meaning but that the resulting gray space has left people concerned. Lauren Said-Moorhouse, CNN, 7 Feb. 2024 Medical experts say more research is needed to make sure the habit is safe, but women who partake tout its positive effect on focus, the management of menopause symptoms, and after-work relaxation. Emma Hinchliffe, Fortune, 7 Feb. 2024 Yes, and public health experts and medical professionals are pleading with parents to protect their children with it. Erin Prater, Fortune Well, 27 Jan. 2024 The documentary’s host of persuasive experts on legal and constitutional matters include USC law professor Jody Armour, MSNBC legal news analyst Ari Melber and defense attorney John Hamasaki. Lisa Kennedy, Variety, 27 Jan. 2024 Males grow to be larger than females, experts said. Moira Ritter, Miami Herald, 26 Jan. 2024
For expert insight, Sharon spoke with Jonathon Reckles, vice president of marketing at CD One Price Cleaners. Sharon Brandwein, Southern Living, 6 Feb. 2024 If your love language happens to take the form of creative confections, read on for expert advice on elevating your edible masterpieces, no matter the celebration. Maggie Gillette, Better Homes & Gardens, 30 Jan. 2024 Programming While beginner ski and snowboard lessons are not available at Aspen Mountain due to its intermediate and expert level terrain, nearby Buttermilk and Snowmass make great places to start your winter sports journey. Brandon Perlman, Travel + Leisure, 29 Jan. 2024 Get expert advice rather than listening to a know-it-all who will point you in the wrong direction. Eugenia Last, The Mercury News, 26 Jan. 2024 Singer also happens to be Alice Waters’s daughter, and though nepo babies might arouse suspicion in many contexts, having an expert parent seems like a fair qualification in this particular realm: Where better to learn home cooking than at home? The New Yorker, 26 Jan. 2024 In a way, filmmaker Steven Soderbergh has long had the qualities of an expert thriller maker: a flair for liberated camerawork and situational domestic tensions that fuel the best genre movies. Matt Brennan, Los Angeles Times, 26 Jan. 2024 The data was then used by an expert panel of community managers who finalized the rankings. Stacey Leasca, Travel + Leisure, 23 Jan. 2024 Early gives an expert performance of physical comedy. Murtada Elfadl, Variety, 23 Jan. 2024
Rent a cabin for the weekend or try the off-road mountain bike trails, graded from beginner to expert. Miami Staff, Miami Herald, 30 Jan. 2024 Sew for Love is a group of sewers from the South Bay community–ranging in skill from beginner to expert–who sew a variety of projects that are then donated to people in the community who need them. Shae Hammond, The Mercury News, 12 Jan. 2024 Showgoers can look forward to expert bonsai demonstrations, as well as a sale featuring hundreds of trees, plants, pots and other bonsai merchandise offered by SDBC members. San Diego Union-Tribune, 23 Apr. 2023 Meanwhile, Los Angeles County area residents can expert unusually warm temperatures on Thursday along the coast and valleys before dipping again over the weekend. Andrew J. Campastaff Writer, Los Angeles Times, 9 Feb. 2023 According to the Louisville National Weather Service, a heat wave that began in earnest Monday afternoon is the result of dry southern winds descending on the area, and residents should expert temperatures between 90 and 100 throughout the coming weeks. Thomas Birmingham, The Courier-Journal, 13 June 2022 Toby Grey contributes as a How To expert for BGR. Toby Grey, BGR, 24 May 2022 Medium-impact activities are somewhere in between, such as more intense cycling, intermediate to expert hikes and elliptical training, to name a few. Nicola Fumo, The Hollywood Reporter, 20 Jan. 2023 Rather than a full head of highlights distributed uniformly through the hair, French women prefer to get their hair colored with a more freestyle (but still expert) touch. Hannah Coates, Vogue, 3 Jan. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'expert.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History



borrowed from French, going back to Middle French, derivative of expert expert entry 2


Middle English, borrowed from Anglo-French, borrowed from Latin expertus "tested, shown to be true," from past participle of experīrī "to put to the test, attempt, have experience of, undergo" — more at experience entry 1


derivative of expert entry 1

First Known Use


1535, in the meaning defined above


14th century, in the meaning defined at sense 2


circa 1889, in the meaning defined above

Time Traveler
The first known use of expert was in the 14th century

Dictionary Entries Near expert

Cite this Entry

“Expert.” Dictionary, Merriam-Webster, Accessed 21 Feb. 2024.

Kids Definition


1 of 2 adjective
: showing special skill or knowledge gained from training or experience
expert advice
expertly adverb
expertness noun


2 of 2 noun
ex·​pert ˈek-ˌspərt How to pronounce expert (audio)
: a person with special skill in or knowledge of a subject

Legal Definition


: a person with special or superior skill or knowledge in a particular area see also expert witness at witness

More from Merriam-Webster on expert

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