A French parfait (parfait glacé), an iced dessert made with egg yolks, sugar, cream, and flavouring (usually fruit), sometimes with the addition of a liqueur.
An American parfait, a layered dessert often consisting of fruit, ice cream, pastries, whipped topping, etc. and served in a glass, often a parfait glass.
A smooth pâté, usually made from liver and flavoured with liqueurs.
Something added to food to sweeten its taste, especially an artificial substitute for sugar.
A shill bidder at an auction.
Something given or added to added to a deal to sweeten another's attitude, especially a bribe or kickback.