Questions about the usage, etymology, history, and meaning of the contraction "ain't."
From Merriam-Webster Dictionary:
Definition of AIN'T
1: am not : are not : is not
2: have not : has not
3: do not : does not : did not
Usage excerpt:
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. It is used especially in journalistic prose as part of a consistently informal style. 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.
