What is the meaning of Nut?

noun

• Usually large hard-shelled seed.
• Egyptian goddess of the sky.
• A small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt.
• Half the width of an em.
  • synonyms: en
• A whimsically eccentric person.
  • synonyms: crackpot, crank, nut case, fruitcake, screwball
• Someone who is so ardently devoted to something that it resembles an addiction.
  • usage: "a golf addict"; "a car nut"; "a bodybuilding freak"; "a news junkie"
  • synonyms: addict, freak, junkie, junky
• One of the two male reproductive glands that produce spermatozoa and secrete androgens.
  • usage: "she kicked him in the balls and got away"
  • synonyms: testis, testicle, orchis, ball, ballock, bollock, egg

verb

• Gather nuts. .