isn't

word · lemma: be not

/ˈɪzən/, /ˈɪzənt/, /ɪzənt/
IZ-uhnt
/ˈɪn(t)/
IZ-nt

Definition

A contraction of 'is not', used to make negative statements in English.

Usage & Nuances

Commonly used in spoken and written English. It's informal but standard for negative present tense 'to be' with he, she, it, or singular nouns. Do not confuse with 'ain't' which is more slang. Often appears in questions: "Why isn't she here?"

Example Sentences

Why isn't she answering her phone?

natural

I know he isn't coming tonight.

natural

She isn't happy with the answer.

basic

This book isn't very interesting.

basic

It isn't as easy as you think.

natural

He isn't at home right now.

basic