transcription, транскрипция: [ ˈānt ]
Etymology: contraction of are not
Date: 1749
1. : am not : are not : is not
2. : have not : has not
3. : do not : does not : did not — used in some varieties of Black English
Usage:
Although widely disapproved as nonstandard and more common in the habitual speech of the less educated, ain't in senses 1 and 2 is flourishing in American English. It is used in both speech and writing to catch attention and to gain emphasis
the wackiness of movies, once so deliciously amusing, ain't funny anymore — Richard Schickel
I am telling you—there ain't going to be any blackmail — R. M. Nixon
It is used especially in journalistic prose as part of a consistently informal style
the creative process ain't easy — Mike Royko
This informal ain't is commonly distinguished from habitual ain't by its frequent occurrence in fixed constructions and phrases
well—class it ain't — Cleveland Amory
for money? say it ain't so, Jimmy! — Andy Rooney
you ain't seen nothing yet
that ain't hay
two out of three ain't bad
if it ain't broke, don't fix it
In fiction ain't is used for purposes of characterization; in familiar correspondence it tends to be the mark of a warm personal friendship. It is also used for metrical reasons in popular songs
Ain't She Sweet
It Ain't Necessarily So
Our evidence shows British use to be much the same as American.