definition of
boil

[1] #1 boil v. come to the boiling point and change from a liquid to vapor; "Water boils at 100 degrees Celsius". wn

[2] #2 boil v. immerse or be immersed in a boiling liquid, often for cooking purposes; "boil potatoes"; "boil wool". wn

[3] #3 boil v. bring to, or maintain at, the boiling point; "boil this liquid until it evaporates". wn

[4] #4 boil n. [furuncle] a painful sore with a hard core filled with pus. wn

[5] #5 boil n. [boiling point] the temperature at which a liquid boils at sea level; "they brought the water to a boil". wn