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1.
slang contraction of is not, are not, am not, do not or does not.
He ain't lazy, he just ain't got nothing to do.
superrockstar125によって 2003年02月10日(月)

Words related to ain't

aint aint no no you you shit shit a a not not i i isn't isn't got got haven't haven't
 
2.
<negative third person singular> Chiefly American Colloquial Contraction

A single word that is equivalent to other words such as:
1) Am not
2) Are not
3) Is not

==> Most likely originated in the Southern States of America as it flows easily with their accent but has now been used in many places around the world.
"I aint going."
"We aint going."
"He aint going."
Stuart Fletcherによって 2005年01月29日(土)
 
3.
Is now in a dictionary
Teacher: Ain't is not in the dictionary

Student: It's on the urbandictionary!
martytiptoesによって 2010年10月20日(水)
 
4.
Contraction of am not and slang contraction for anything else.
I ain't gonna watch Joe Millionare 2 because it ain't good.
Chaseによって 2003年11月11日(火)
 
5.
Originally a non-slang word, ain't began as a contraction for "am not", as in "I ain't stupid." When people began to use it improperly as in "He ain't", which should have been "He isn't", people came to consider it improper use of language. Today, it's known to be used predominantly in the south and by uneducated people.
I ain't yo' momma.

He ain't goin' to eat those nasty baked beans.
Pitoyableによって 2005年05月02日(月)
 
6.
1. a combination of the words are not.
2. a combination of the words am not.
1. You aint going.
2. I aint going.
dixielightningによって 2003年07月26日(土)
 
7.
Is not.
Ain't ain't a word and you ain't spose to use it.
Anonymousによって 2003年09月11日(木)