- a mixture variously of sugar, butter, flavoring, water or other liquid, egg whites, etc. for covering a cake or pastries; icing
- a dull, frostlike finish on glass, metal, etc.
- a mixture of ground glass, varnish, etc. used in ornamental work
- Icing, as on a cake.
- A roughened or speckled surface imparted to glass or metal.
- The plural form is used for multiple varieties of frosting; a single type of frosting is itself uncountable.
- Present participle of to frost.