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1.
A group of witches or vampires
Vampire Armand was the leader of "les innocents" cemetary coven.
by Eduardo Mex April 06, 2006
 
2.
A group of witches, usually 13.
That house with all the lesbians has about 13 people living there, it must be a coven
by Cliff Whitty June 30, 2006
 
3.
Collective noun for lesbians
The Women's Rugby Team at any college is usually nothing but a coven of lesbians.
by CMcG June 25, 2006