from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An indehiscent, hard-shelled, one-loculated, one-seeded fruit, such as an acorn or hazelnut.
  • n. A seed borne within a fruit having a hard shell, as in the peanut, almond, or walnut.
  • n. The kernel of any of these.
  • n. Slang A crazy or eccentric person.
  • n. Slang An enthusiast; a buff: a movie nut.
  • n. Informal A difficult endeavor or problem: Painting the closet was a tough nut to crack.
  • n. Slang The human head.
  • n. Music A ridge of wood at the top of the fingerboard or neck of a stringed instrument, over which the strings pass.
  • n. Music A device at the lower end of the bow for a stringed instrument, used for tightening the hairs.
  • n. A small block of metal or wood with a central, threaded hole that is designed to fit around and secure a bolt or screw.
  • n. Slang The cost of launching a business venture.
  • n. Slang The operating expenses of a theater, theatrical production, or similar enterprise: "The [theater] has simply failed to attract enough paying customers per week to meet its nut” ( Variety).
  • n. Vulgar Slang A testicle.
  • intransitive v. To gather or hunt for nuts.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A hard-shelled seed.
  • n. A fastener: a piece of metal, usually square or hexagonal in shape, with a hole through it having machined internal threads, intended to be screwed onto a bolt or other threaded shaft.
  • n. A crazy person.
  • n. The head.
  • n. Financial term for monthly expense to keep a venture running.
  • n. The amount of money necessary to set up some venture; set-up costs.
  • n. A stash of money owned by an extremely rich investor, sufficient to sustain a high level of consumption if all other money is lost.
  • n. On string instruments such as guitars and violins, the small piece at the peghead end of the fingerboard that holds the strings at the proper spacing and, in most cases, the proper height.
  • n. En, a unit of measurement equal to half of the height of the type in use.
  • n. An extravagantly fashionable young man of the 1910s and 1920s.
  • n. A testicle.
  • n. Semen, ejaculate.
  • n. An extreme enthusiast.
  • n. Relating to the nuts, the best possible hand on a given board.
  • v. To hit deliberately with the head; to headbutt.
  • v. To ejaculate (semen).

from the GNU version of the Collaborative International Dictionary of English

  • n. The fruit of certain trees and shrubs (as of the almond, walnut, hickory, beech, filbert, etc.), consisting of a hard and indehiscent shell inclosing a kernel.
  • n. A perforated block (usually a small piece of metal), provided with an internal or female screw thread, used on a bolt, or screw, for tightening or holding something, or for transmitting motion. See Illust. of 1st Bolt.
  • n. The tumbler of a gunlock.
  • n. A projection on each side of the shank of an anchor, to secure the stock in place.
  • n. Testicles.
  • intransitive v. To gather nuts.

from The Century Dictionary and Cyclopedia

  • To gather nuts: used especially in the present participle.
  • n. The fruit of certain trees and shrubs which have the seed inclosed in a bony, woody, or leathery covering, not opening when ripe.
  • n. In machinery, some small part supposed in some way to resemble a nut.
  • n. Same as chestnut-coal.
  • n. plural Something especially agreeable or enjoyable.
  • n. plural The testicles.
  • n. A cup made of the shell of a cocoanut or some other nut, often mounted in silver.
  • n. A bulbous plant, Iris Sisyrinchium, of southern Europe.
  • n. Loosely, a similar vegetable product, as a tuberous root (earth-nut, ground-nut), leguminous pod (peanut), or seed(physic-nut).
  • n. In general, the lower end or heel of the bow: opposed to point or head.
  • n. In Australia:
  • n. See the extract.
  • n. A daredevil.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. Egyptian goddess of the sky
  • n. someone who is so ardently devoted to something that it resembles an addiction
  • v. gather nuts
  • n. usually large hard-shelled seed
  • n. a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt
  • n. half the width of an em
  • n. a whimsically eccentric person
  • n. one of the two male reproductive glands that produce spermatozoa and secrete androgens


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English nute, from Old English hnutu.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English nute, note, from Old English hnutu, from Proto-Germanic *hnutuz (“nut”) (cf. West Frisian nút, Dutch noot, German Nuss), from Proto-Indo-European *knu-, *kneu- (cf. Irish cnó, Latin nux ("walnut"), Albanian nyç ("a gnarl")).



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  • In the sense of "headbutt" (which shows up at least once in the definitions above):

    Quintus was sporting a considerable plaster across a nose that looked damaged in just the way you would expect a nose to be damaged if you'd been nutted by someone who was trying to stop you from pistol-whipping them.
    Kate Atkinson, Case Histories (New York: Little Brown & Co., 2004), p. 282.

    May 30, 2016

  • "Most of the young Masters already have their own personal nut free and clear. “Nut�? is the term for the amount of money you need salted away in weather-proof investments in order to generate enough interest to live comfortably in Greenwich on Round Hill Road, Pecksland Road or Field Point Road in a house built before the First World War in an enchanting European style, preferably made of stone featuring the odd turret, with a minimum of five acres around it and big enough to be called a manor. Every Master of the Universe knows the number."

    The New York Times, Greenwich Time , by Tom Wolfe, September 27, 2008

    September 29, 2008

  • On a guitar, the device (opposite the tailpiece) that anchors the upper end of the strings and forms the transition between the neck and the headstock.

    November 15, 2007

  • in addition to more mundane meanings, nut is also the name of a female egyptian deity of the night sky.

    January 10, 2007