a message whose ingenuity or verbal skill or incongruity has the power to evoke laughter source: WordNet 3.0the trait of appreciating (and being able to express) the humorous She didn't appreciate my humor.
You can't survive in the army without a sense of humor.
source: WordNet 3.0a characteristic (habitual or relatively temporary) state of feeling Whether he praised or cursed me depended on his temper at the time.
He was in a bad humor.