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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 55 isn’t that good either,” he said with a grin.

From Los Angeles Times

"Expanding and strengthening a rare temperate rainforest isn't a one-off intervention, it requires steady, long-term effort."

From BBC

He told BBC Scotland News: "The relatively cooler climate in Scotland isn't going to do much to mitigate this."

From BBC

He added: "We are the second language spoken, and we want to be seen, it is important for us - isn't it important to you as well?"

From BBC

In a Feb. 1 interview with CNN, Blanche said there were “a lot of horrible photographs” and correspondence with Epstein “but that doesn’t mean we can just create evidence or that we can just kind of come up with a case that isn’t there.”

From The Wall Street Journal