expertise

noun

ex·​per·​tise ˌek-(ˌ)spər-ˈtēz  -ˈtēs 

1

: the skill of an expert

2

: expert opinion or commentary

Synonyms of expertise

• skills
• experience
• proficiency

Examples of expertise in a Sentence

While the declared nuclear powers have wobbled in their commitment to get rid of their arsenals, the rise of a global black market in nuclear expertise and materials has made the Bomb more attainable for everyone else. —Michael Elliott, Time, 1 Aug. 2005

The English magazine The Spectator employs me as "Dear Mary," a so-called agony aunt, in which capacity I have over the years gained considerable expertise in various areas of etiquette … —Mary Killen, Atlantic, May 2001

Can anyone out there drive a bloody automobile? By driving I do not mean simply guiding a two-ton lump of steel and plastic along a smooth stretch of macadam, but actually steering, braking, and shifting the thing with a modicum of competence, if not outright expertise. —Brock Yates, Car & Driver, October 2001

If a company that spends millions of dollars a year on a fancy advertising campaign to brag about its Web design expertise can't steer a motivated buyer like me to a Buy Now button in less than 30 minutes, then what hope is there for smaller, less experienced retail sites? —Michelle Slatalla, New York Times, 8 Mar. 2001

His expertise on defense will help the team.

her expertise in legal matters

Recent Examples on the Web

The Guard troops plan to continue training with the new technology alongside federal agency partners including the FBI and Department of Homeland Security to gain further expertise in using it to detect drone threats within the United States. — Zita Ballinger Fletcher, Forbes.com, 1 Aug. 2026

With dozens of victims needing to be identified, Charney's expertise and proximity proved invaluable to investigators. — Dillon Thomas, CBS News, 31 July 2026

According to Los Alamos, the ZiaCore project also demonstrates how advanced reactor technologies can leverage the laboratory’s expertise in heat pipes, reactor materials, fabrication, and criticality testing. — Jijo Malayil, Interesting Engineering, 31 July 2026

Former African Development Bank vice president Bajabulile Swazi Tshabalala is also among the appointees, injecting development finance expertise. — Tiisetso Motsoeneng, semafor.com, 31 July 2026

Word History

Etymology

borrowed from French, going back to Middle French, from espert, expert expert entry 2 + -ise -ice

First Known Use

1868, in the meaning defined at sense 2

Phrases Containing expertise

• area of expertise

Rhymes for expertise

• abcs
• absentees
• addressees
• adoptees
• allottees
• amputees
• antifreeze
• appellees
• appointees
• arrestees
• artistes
• assamese

Kids Definition

expertise

noun

ex·​per·​tise ˌek-(ˌ)spər-ˈtēz  -ˈtēs 

: the skill of an expert