What is the meaning of humour?

noun

• A characteristic (habitual or relatively temporary) state of feeling.
  • usage: "whether he praised or cursed me depended on his temper at the time"; "he was in a bad humor"
  • synonyms: temper, mood, humor
• A message whose ingenuity or verbal skill or incongruity has the power to evoke laughter.
  • synonyms: wit, humor, witticism, wittiness
• Middle Ages. ( one of the four fluids in the body whose balance was believed to determine your emotional and physical state)
  • usage: "the humors are blood and phlegm and yellow and black bile"
  • synonyms: humor
• The liquid parts of the body.
  • synonyms: liquid body substance, bodily fluid, body fluid, humor
• The quality of being funny.
  • usage: "I fail to see the humor in it"
  • synonyms: humor
• The trait of appreciating (and being able to express) the humorous.
  • usage: "she didn't appreciate my humor"; "you can't survive in the army without a sense of humor"
  • synonyms: humor, sense of humor, sense of humour

verb

• Put into a good mood.
  • synonyms: humor