ain't

American  

[eynt] / eɪnt /

1. Nonstandard except in some dialects. contraction of am not; are not; is not.

2. Nonstandard. contraction of have not; has not; do not; does not; did not.

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ain't British  

/ eɪnt /

contraction

1. am not, is not, are not, have not, or has not

   I ain't seen it

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Usage

As a substitute for am not, is not, and are not in declarative sentences, ain't is more common in uneducated speech than in educated, but it occurs with some frequency in the informal speech of the educated, especially in the southern and south-central states. This is especially true of the interrogative use of ain't I? as a substitute for the formal and—to some—stilted am I not? or for aren't I?, considered by some to be ungrammatical, or for the awkward—and rare in American speech— amn't I? Some speakers avoid any of the preceding forms by substituting Isn't that so ( true, the case ) ? Ain't occurs in humorous or set phrases: Ain't it the truth! She ain't what she used to be. It ain't funny. The word is also used for emphasis: That just ain't so! It does not appear in formal writing except for deliberate effect in such phrases or to represent speech. As a substitute for have not or has not and—occasionally in Southern speech— do not, does not, and did not, it is nonstandard except in similar humorous uses: You ain't heard nothin' yet! See also aren't.

Etymology

Origin of ain't

First recorded in 1770–80; variant of amn't (contraction of am not ) by loss of m and raising with compensatory lengthening of a; cf. aren't

Example Sentences

But, as Rocky famously said, it ain't about how hard you hit - it's about how hard you get hit and can keep moving forward.

From BBC • May 18, 2026

If that makes the outcome seem like a foregone conclusion, it ain’t necessarily so, thanks to Labour’s laborious internal democratic process.

From Salon • May 12, 2026

“You know, if it ain’t broke, don’t fix it,” says Hamala.

From The Wall Street Journal • May 6, 2026

Speculation over Parton's health last year -- following her sister's public request for prayers -- prompted the music legend to post a video addressing her fans titled "I ain't dead yet!"

From Barron's • May 4, 2026

“I know it,” he said, “but her eyesight ain’t up to much.”

From "The Teacher’s Funeral" by Richard Peck