isn't

contraction

ˈi-zᵊnt How to pronounce isn't (audio)
-ᵊn,
 dialectal also  ˈi-dᵊn(t),
 or  ˈin(t)
: is not

Word History

First Known Use

1608, in the meaning defined above

Time Traveler
The first known use of isn't was in 1608

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Cite this Entry

“Isn't.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isn%27t. Accessed 3 Mar. 2025.

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Kids Definition

isn't

ˈiz-ᵊnt How to pronounce isn't (audio)
: is not
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