ain't

[eynt]

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.

ain't

/ eɪnt /

contraction

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

   I ain't seen it

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.

Word History and Origins

Origin of ain't¹

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

Example Sentences

Taking a cue from the Byrds’ hit version of Bob Dylan’s “Mr. Tambourine Man,” the Turtles released a revved-up cover of Dylan’s “It Ain’t Me Babe” that squarely hit the zeitgeist, climbing into the Billboard Top 10 in summer 1965.

From Los Angeles Times

She told jurors that she said to Ellis: “B—, get the f— out of my face. Why are you in my face? Why are you recording me? Ain’t you supposed to be security?’

From Los Angeles Times

“I ain’t doing nothing that others aren’t doing,” Steigh said of paying parents.

From Los Angeles Times

“Don’t Wake Me Up” is a “Subterranean Homesick Blues”-esqe litany of all of the locations in which the singer has daydreamed: “Don’t wake me up, I ain’t up for that/the way this world is going ain’t where I’m at,” goes the chorus, which features Jesse Welles, probably best known as Instagram’s favorite protest singer.

From Salon

“And if I’m fake, I ain’t notice ‘cause my money ain’t / So let me get this straight, wait, I’m the rookie?

From Los Angeles Times