- a variation of expertize.
expertise
1 Americanverb (used with or without object)
noun
Other Word Forms
Noun Inflected Forms
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.
Vocabulary lists containing expertise
Academic Vocabulary Toolkit 1, Words 41-50
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"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.
Appeared in the June 1, 2026, print edition as 'AI Made My Expertise More Effective'.
From The Wall Street Journal • May 31, 2026
He and fellow researchers make that case in their recent study, “The Expertise Upheaval: How Generative AI’s Impact on Learning Curves Will Reshape the Workforce.”
From MarketWatch • Oct. 26, 2025
A doctor and psychiatric nurse were assigned to Nicole’s case, and clinicians from the Euthanasia Expertise Center met several times with the family as the date approached.
From Salon • Jan. 16, 2025
Expertise, patience, attention and care, renewed every season.
From New York Times • Jan. 4, 2024
Expertise in a subfield was the key to a successful career as an engineer, and expertise was becoming a necessity for the mathematicians and computers as well.
From "Hidden Figures" by Margot Lee Shetterly
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.
