1. a sweet coating made of sugar, butter, and other ingredients, used to cover cakes and other baked goods
2. a thin layer of ice crystals that forms on surfaces when the temperature drops below freezing
3. a translucent or etched finish on glass or metal

1. present participle of frost; covering with frost or a frost-like coating

Examples

• She spread chocolate frosting on the birthday cake.
• The vanilla frosting was perfectly smooth and sweet.
• There was a light frosting on the car windshield this morning.
• The bathroom window had frosting for privacy.
• The cold weather is frosting the windows overnight.
• He carefully piped the frosting around the cake’s edges.