noun

1. the trait of appreciating (and being able to express) the humorous

e.g. she didn't appreciate my humor
you can't survive in the army without a sense of humor

Synonym: humorsense of humorsense of humour

2. the quality of being funny

e.g. I fail to see the humor in it

Synonym: humor

3. the liquid parts of the body

Synonym: liquid body substancebodily fluidbody fluidhumor

4. (Middle Ages) one of the four fluids in the body whose balance was believed to determine your emotional and physical state

e.g. the humors are blood and phlegm and yellow and black bile

Synonym: humor

5. a message whose ingenuity or verbal skill or incongruity has the power to evoke laughter

Synonym: withumorwitticismwittiness

6. a characteristic (habitual or relatively temporary) state of feeling

e.g. whether he praised or cursed me depended on his temper at the time
he was in a bad humor

Synonym: tempermoodhumor