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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; see expert, -ise 2

Explanation

When you're an expert at something, you show expertise — or an exceptional knowledge of the subject. "He had expertise in accounting, having excelled in math, but he had even more expertise in dancing, his hobby since a small child." Expertise has obvious roots in the word expert. Just about any interest or field has a place for experts. Just as one individual has expertise in world religions, another may have expertise in computer gaming. Working hard or immersing yourself in a specialty leads to expertise, and it comes through both study and hands-on experience.

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Vocabulary lists containing expertise

Academic Vocabulary Toolkit 1, Words 41-50

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

"The Book Thief" by Markus Zusak, Part Eight

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English Words Derived from French, List 4

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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.

Combining Cursor's software and product expertise with SpaceX's "Colossus" AI training supercomputer will enable the company "to build the world's most useful models," it said.

From Barron's • Apr. 21, 2026

A spokeswoman said the project required top scientific expertise given its “incredibly complex and unprecedented” nature and is expected to come in under budget, at less than $1 million.

From The Wall Street Journal • Apr. 21, 2026

Cook’s expertise in logistics helped the company navigate major supply-chain disruptions, such as the pandemic and various iterations of tariffs.

From MarketWatch • Apr. 21, 2026

In their favour is Germany's expertise in manufacturing.

From BBC • Apr. 20, 2026

“I prepared for this conversation because...well, this isn’t necessarily my area of expertise, and I wanted to be sure I was doing right by you.”

From "A High Five for Glenn Burke" by Phil Bildner

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.