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

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

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

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

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

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