Pronunciation: (tärt),[key] —adj.,-er, -est. 1. sharp to the taste; sour or acid: tart apples. 2. sharp in character, spirit, or expression; cutting; caustic: a tart remark.
Pronunciation: (tärt),[key] —n. 1. a small pie filled with cooked fruit or other sweetened preparation, usually having no top crust.
2. a covered pie containing fruit or the like.
3. Slang.a prostitute or promiscuous woman.
—v.t. tart up,Slang.to adorn, dress, or decorate, esp. in a flamboyant manner: The old restaurant was tarted up to look like a Viennese café.