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1.
another word for yes
Sally said "do you know there she lives?"
Yanny replyed "yace!"
by zorflax November 02, 2003
 
2.
Another word for "yes"
As in "Yaaaaaaaaaaaace" after throwing your darts, even if you only hit one.

Often followed by "Tops" or "Eeeeiiighty fiiiive"

Yace
by Yace July 13, 2014