n a painful sore with a hard core filled with pus
n the temperature at which a liquid boils at sea level
v come to the boiling point and change from a liquid to vapor
v immerse or be immersed in a boiling liquid, often for cooking purposes
v bring to, or maintain at, the boiling point
v be agitated
v be in an agitated emotional state
v. （使）沸腾, 开( boil的第三人称单数 ); 用开水煮, 在沸水中煮; 怒火中烧, 异常气愤