Ain't
Meaning
A contraction for are not and am not; also used for is not. [Colloq. or illiterate speech]. See An't.
Source: Webster's dictionaryExamples
All music is folk music. I ain't never heard a horse sing a song.
Truth is like the sun. You can shut it out for a time, but it ain't going away.
One man alone can be pretty dumb sometimes, but for real bona fide stupidity, there ain't nothin' can beat teamwork.
Ain't over till the fat lady sings.
Don't mend what ain't broken.
Common sense ain't common.