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A genre of music using no instruments besides vocals.
Examples of groups are Rockapella, Three Men and a Tenor, and Ascending A Cappella.
by Kevin December 06, 2003
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2
"A capella" definition is wrong. Not usually used by rappers, but rather by people that actually...sing (and sing well) without instrumental accompaniment. Please see

http://www.singers.com/a-cappella.html

...for more enlightenment on what a cappella is.
"Hey guys, let's sing real a cappella, with no instrumental accompaniment. And better yet, let's actually sing and use musical notes in our music and not chant simple rhymes and curse words in a monotone like the music artist b rabbit does in 8 Mile!"

"Sounds great! Wait, b rabbit is a music artist? Since when?"
by Tie Guy February 05, 2009
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3
A cappella (italian): like the chapel.

voice music without instrumental accompaniment.
"The band died when they cut the power but Sid just sang a cappella like he never heard them anyway."
by yogipete July 28, 2008
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