(1):

(v. i.) The act of freezing; - applied chiefly to the congelation of water; congelation of fluids.

(2):

(v. i.) The state or temperature of the air which occasions congelation, or the freezing of water; severe cold or freezing weather.

(3):

(v. i.) Frozen dew; - called also hoarfrost or white frost.

(4):

(v. t.) To cover with hoarfrost; to produce a surface resembling frost upon, as upon cake, metals, or glass.

(5):

(v. i.) Coldness or insensibility; severity or rigidity of character.

(6):

(v. t.) To injure by frost; to freeze, as plants.

(7):

(v. t.) To roughen or sharpen, as the nail heads or calks of horseshoes, so as to fit them for frosty weather.