Nouns

(n)frost, hoar, hoarfrost, rimeice crystals forming a white deposit (especially on objects outside)
(n)freeze, frostweather cold enough to cause freezing
(n)frost, icingthe formation of frost or ice on a surface

Verbs

(v)frost, icedecorate with frosting“frost a cake”
(v)frostprovide with a rough or speckled surface or appearance“frost the glass”, “she frosts her hair”
(v)frostcover with frost“ice crystals frosted the glass”
(v)frostdamage by frost“The icy precipitation frosted the flowers and they turned brown”