What is the meaning of bitch?

noun

• An unpleasant difficulty.
  • usage: "this problem is a real bitch"
• A person (usually but not necessarily a woman) who is thoroughly disliked.
  • usage: "she said her son thought Hillary was a bitch"
  • synonyms: cunt
• Informal terms for objecting.
  • usage: "I have a gripe about the service here"
  • synonyms: gripe, kick, beef, squawk
• Female of any member of the dog family.

verb

• Complain.
  • usage: "What was he hollering about"
  • synonyms: gripe, grouse, crab, beef, squawk, bellyache, holler
• Say mean things.
  • synonyms: backbite