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expertism

[ ek-sper-tiz-uhm ]
/ ˈɛk spərˌtɪz əm /
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noun
expertness or skill, especially in a specific field.
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Which of the following nouns has an irregular plural form?

Origin of expertism

First recorded in 1885–90; expert + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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