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Synonyms

expertise

1 American  
[ek-sper-teez] / ˌɛk spərˈtiz /

noun

  1. expert skill or knowledge; expertness; know-how.

    business expertise.

  2. a written opinion by an expert, as concerning the authenticity or value of a work of art, manuscript, etc.

expertise 2 American  
[ek-sper-tahyz] / ˈɛk spərˌtaɪz /

verb (used with or without object)

Chiefly British.
expertised, expertising

  1. expertize.

expertise British  
/ ˌɛkspɜːˈtiːz /

noun

  1. special skill, knowledge, or judgment; expertness

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of expertise

First recorded in 1865–70; from French: “survey, report (made by experts),” with -ise understood as an abstract noun suffix; expert, -ise 2

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.

Darren said the couple were given no support or expertise.

From BBC • Mar. 31, 2026

Criteria included space, facilities, staff expertise and herd dynamics.

From Los Angeles Times • Mar. 31, 2026

Small-caps are no picnic either, with more than 40% of companies in the Russell 2000 being unprofitable, including lots of biotechs that require expertise to vet.

From The Wall Street Journal • Mar. 30, 2026

The findings highlight the importance of chemistry expertise in microplastics research, especially when it comes to identifying subtle differences between materials.

From Science Daily • Mar. 29, 2026

Given Cahokia’s engineering expertise, though, solutions were within reach: terracing hillsides, diking rivers, even moving Cahokia.

From "1491" by Charles C. Mann

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.