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isn't

American  
[iz-uhnt] / ˈɪz ənt /
  1. contraction of is not.


isn't British  
/ ˈɪzənt /

contraction

  1. is not

"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

Pronunciation

Isn't is often pronounced in the South Midland and Southern U.S., with , a stop consonant, substituting for , a sibilant. This substitution results from an assimilatory process in which the tip of the tongue, in anticipation of the articulatory position for the following , touches the upper alveolar ridge. This same process gives for wasn't and for business. These pronunciations are heard from speakers on all social levels.

Usage

See contraction.

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.

The committee he leads also isn’t sure which moment it faces.

From The Wall Street Journal • Jun. 19, 2026

Dylan’s drip isn’t the only thing putting him into the viral bloodstream of the internet.

From Los Angeles Times • Jun. 19, 2026

But your reality show isn’t playing as well as it used to do.

From Salon • Jun. 19, 2026

The best soccer isn’t a contest of skulls, but a contest of intelligence.

From The Wall Street Journal • Jun. 19, 2026

Maybe Jillian isn’t the only one seeing people with fresh eyes and realizing that people can be more than one thing.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

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