What is the meaning of fool?

noun

• A person who lacks good judgment.
  • synonyms: sap, saphead, muggins, tomfool
• A person who is gullible and easy to take advantage of.
  • synonyms: chump, gull, mark, patsy, fall guy, sucker, soft touch, mug
• A professional clown employed to entertain a king or nobleman in the Middle Ages.
  • synonyms: jester, motley fool

verb

• Make a fool or dupe of.
  • synonyms: gull, befool
• Spend frivolously and unwisely.
  • usage: "Fritter away one's inheritance"
  • synonyms: fritter, frivol away, dissipate, shoot, fritter away, fool away
• Fool or hoax.
  • usage: "The immigrant was duped because he trusted everyone"; "You can't fool me"
  • synonyms: gull, dupe, slang, befool, cod, put on, take in, put one over, put one across
• Indulge in horseplay.
  • usage: "Enough horsing around-let's get back to work"; "The bored children were fooling about"
  • synonyms: horse around, arse around, fool around