nut
Pluralnuts
Pluralnuts
- 1A hard-shelled seed or dry fruit with an edible kernel, produced by many kinds of plant; in botany, strictly a hard, dry fruit that does not split open to release its single seed.
She cracked the nut open and ate the kernel inside.
A bowl of mixed nuts sat on the table beside the cheese.
Note
Here nut is a grocer's category rather than a botanist's, wide enough to hold peanuts, cashews, pistachios and Brazil nuts together. Botanists keep the word for the strict, unsplitting fruit, so something that counts as a nut at the table may not count in the lab.
Checked 2 Nov 2026 · 2 facts
- A botanical nut is a hard, indehiscent fruit. mobot.org
- Culinary nuts can fall outside the botanical definition. en.wikipedia.org
- 2A piece of hardware, usually metal and hexagonal or square, with an internally threaded hole that screws onto a matching bolt or shaft.
She fastened a nut onto the threaded rod and tightened it firmly.
Each bolt needs a nut to hold the bracket in place.
UsageSay tighten a nut or loosen a nut. The nuts and bolts of something are its practical details.
Note
The fastener that works in a pair: the nut carries the inner thread, the bolt the outer one, and tightening one onto the other draws the parts together.
Checked 2 Nov 2026 · 1 fact
- A nut has an internal thread that engages a bolt's external thread, fastening parts together. en.wikipedia.org
- 3A person regarded as crazy, eccentric, or wildly irrational.
Everyone thought he was a nut for quitting his job to chase storms.
She's a bit of a nut, but her wild ideas often work.
UsageOften a bit of a nut, or like a nut: driving like a nut. Keep it out of talk about mental illness.
Similarlunatic, loony, psycho, nutcase, nutter
Note
A whole family of slang words grows from this sense: nutcase, nutjob, nutbag, nutter, wingnut. Some are written either solid or open (nutcase or nut case, nutjob or nut job).
Checked 2 Nov 2026 · 1 fact
- The crazy-person sense of nut has a related slang family including nutcase, nutjob, nutbag, nutter, and wingnut. en.wiktionary.org
- 4A person who is an extreme enthusiast about a particular interest or activity.
He's a history nut who can name every president in order.
Being a coffee nut, she roasts her own beans at home.
UsageAfter the interest: a history nut, a coffee nut, a fitness nut.
Similarbuff, fanatic, enthusiast, freak
- 5
- 6On stringed instruments like guitars and violins, the small piece at the top of the fingerboard that holds the strings at the correct spacing and height.
The luthier filed the nut to lower the string height near the headstock.
A worn nut can cause tuning problems and string buzz.
Note
A luthier's word, shared by violins and guitars alike, for the piece at the peghead end of the fingerboard. Its first job is spacing: the strings sit in it at fixed intervals. On most instruments it sets their height too, which is why a nut that is cut too low or worn down shows up in the playing as buzz or poor tuning.
Checked 31 Oct 2026 · 5 facts
- Violins and guitars have a nut at the peghead or scroll end of the fingerboard. en.wikipedia.org
- The nut fixes the spacing between the strings. chicagoluthiers.com
- The nut usually sets string height above the fingerboard. en.wikipedia.org
- A worn nut or excessively deep slots can cause buzzing. fender.com
- A worn nut can cause tuning difficulties. yamaha.com
Less common meanings
- 7The head, in informal or slang usage.
Ducking into the low attic, he banged his nut on a beam and saw stars for a moment.
Use your nut and figure it out yourself.
Note
It names the head both as the part you bump and as the place ideas live, and it has been slang since the nineteenth century. James Main Dixon's Dictionary of Idiomatic English Phrases already explains off one's nut as "crazy; mad." P. G. Wodehouse writes of getting an idea "firmly in her nut."
Checked 2 Nov 2026 · 2 facts
- The head sense was established as slang in the nineteenth century. scribd.com
- Wodehouse uses the exact phrase "firmly in her nut" about an idea. en.wiktionary.org
- 8To reach orgasm, especially to ejaculate.
He warned her he was about to nut.
He nutted within a minute and felt embarrassed.
Similarcome, cum, ejaculate, cream, jizz
Note
The verb takes no object, and it is rated only mildly vulgar. It appears in Uncle Luke's song "Bust a Nut" (1996). It is not limited to men: Noire's Thug-A-Licious (2006) uses it of a woman, "as soon as she nutted." The past tense is nutted.
Checked 31 Oct 2026 · 3 facts
- The verb appears in Uncle Luke's song "Bust a Nut" (1996). en.wiktionary.org
- Noire wrote Thug-A-Licious, published in 2006. penguinrandomhouse.com
- Thug-A-Licious uses the verb of a woman, with the exact words "as soon as she nutted." en.wiktionary.org
- 9In vulgar slang, an orgasm or ejaculation, or the semen released.
He described it as the best nut of his life.
He joked that his perfect lazy Sunday meant sleeping late, eating cold pizza, and busting a nut before lunch.
Note
Meaning an orgasm, nut counts: a nut is one event, so it takes an article and an adjective, as in "a good nut." Meaning semen, it is uncountable. In the phrases bust a nut and blow a nut it is the object of the verb, and both phrases mean the same as the bare verb.
- 10In US business slang, the sum of money needed to start a venture or keep it running each month; the basic costs that must be covered.
The bar's nut ran to thousands of dollars every month.
He took extra bookings just to meet the monthly nut.
Similaroverhead, costs, expenses
Note
One of two American slang money senses, this one about running costs: what must be paid every month just to stay open. It is talked about by size. Mr. Mackey in South Park (2025) says "I had no idea my nut was that big." It also covers the money needed before a venture can open at all.
Checked 31 Oct 2026 · 4 facts
- Nut can mean the monthly expense of keeping a venture running. en.wiktionary.org
- Mr. Mackey says the quoted words in South Park. southpark.cc.com
- The episode containing the quotation originally aired in 2025. southpark.cc.com
- Nut also covers the money needed to establish a venture. en.wiktionary.org
- 11
- 12To strike a person in the testicles, usually with a hand, foot, or object.
During the pillow fight his little brother happened to nut him with a knee, and he doubled over groaning.
Swinging his plastic bat wildly, the toddler nutted his father, who sank to his knees with both hands over his crotch.
Note
The target is built into the verb, taken from the testicle noun, so to nut someone needs no "in the." It is slang, and it shares its spelling with the headbutt verb. Only context tells the two blows apart, so make the target clear when it matters.
Checked 31 Oct 2026 · 2 facts
- Nut is attested as a slang verb meaning to hit in the testicles. en.wiktionary.org
- The same spelling also represents a verb meaning to headbutt. en.wiktionary.org
- 13In poker, the best possible hand of a particular type.
Sitting on the nut flush, he raised only a little so the other players would stay in the hand.
With the nut straight in her hand, she checked quietly and waited for her opponents to bet into her.
Note
Poker uses it mostly before another noun: the nut straight, the nut flush, the nut full house, each the best hand of its kind. The plural the nuts names the best possible hand available. That is why a nut flush can still lose to a stronger kind of hand, while the nuts cannot be beaten as the board stands.
Checked 31 Oct 2026 · 2 facts
- A nut flush can lose to a stronger category of hand, such as a full house. en.wikipedia.org
- The nuts cannot be beaten on the current board, but later cards can allow another hand to overtake them. pokerstars.com
- 14A shaped metal piece on a wire loop, wedged into a crack in the rock face to protect a climb.
He wedged a nut into the crack and clipped his rope to it.
The leader placed several nuts along the pitch to protect the climb.
Similarchock
Note
Climbing borrowed the word along with the hardware: the first nuts jammed into cracks were machine nuts, the threaded fasteners. The verb that goes with it is place, and climbers speak of placing nuts. Tony Lourens's Guide to Climbing (2005) gives the rule behind a good placement: look for a constriction in the crack, behind which the nut can be wedged.
Checked 31 Oct 2026 · 3 facts
- Climbing nuts originated as ordinary threaded machine nuts, from which they inherited their name. summitjournal.com
- Tony Lourens wrote Guide to Climbing. search.worldcat.org
- Lourens advises looking for constrictions behind which a nut can be wedged. en.wiktionary.org
- 15To strike someone deliberately with the head.
The bouncer was furious after a customer nutted him at closing time.
He swore he'd nut the next man to mock his accent.
Similarbutt
Note
British slang built on the "head" noun: to nut someone is to strike them with your own. It is transitive and needs an object, as in "nutted me square between the eyes" in Nik Cohn's Yes We Have No (1999). The same blow has regional nicknames, a Glasgow kiss and a Liverpool kiss, and a slang verb, loaf.
Checked 31 Oct 2026 · 4 facts
- The quoted wording appears under Nik Cohn's Yes We Have No in Wiktionary. en.wiktionary.org
- A Glasgow kiss is a headbutt. en.wiktionary.org
- A Liverpool kiss is a headbutt. en.wiktionary.org
- Loaf is a slang verb meaning to headbutt. en.wiktionary.org
- 16To gather nuts, especially from the ground or from trees.
My grandfather took us nutting along the creek each October, and we came home with our pockets full of hickory nuts.
On cool October afternoons the whole family went nutting along the creek, filling paper sacks with fallen black walnuts.
Note
Mostly met as nutting, especially in go a-nutting, where the phrase turns the gathering into an outing. That phrase runs from a play first printed in 1662 to Edwin Way Teale's A Walk Through the Year (1978). The plain verb occurs too: Howitt's Journal (1847) has a countryman shouting "Nobody is allowed to nut here."
Checked 31 Oct 2026 · 7 facts
- Here a- means being engaged in an activity; it does not itself mean an outing. en.wiktionary.org
- The line occurs in Grim the Collier of Croydon, first published in 1662. en.wikipedia.org
- The early line contains a-nutting go. gutenberg.org
- Edwin Way Teale wrote A Walk Through the Year, published in 1978. nps.gov
- Teale's book uses the phrase going a-nutting. en.wiktionary.org
- In 'is allowed to nut', nut is a nonfinite infinitive; is is the finite verb. en.wikipedia.org
- Howitt's Journal contains the quoted wording in 1847. en.wiktionary.org
- 17Used to express refusal or denial; an informal way of saying no.
Nut, there's no way I'm lending him the car again.
When they asked if he'd help, he just said, "Nut."
Similarno
Oppositeyes
Note
A Scottish spoken no that grew out of not, with no connection to the shell-and-kernel nut. Alan Warner's Morvern Callar (1995) uses it as a whole answer in dialogue: "Neither? Nut." That is where it belongs, in speech and particularly in Scottish speech, not in formal writing.
Checked 31 Oct 2026 · 5 facts
- Nut is a Scottish colloquial expression meaning no. en.wiktionary.org
- This expression is a variant of not, with a separate etymology from the fruit noun. en.wiktionary.org
- Alan Warner wrote Morvern Callar, first published in 1995. files.libcom.org
- 1995 is the novel's original publication year, rather than a reprint year. openlibrary.org
- The novel contains this dialogue: Morvern asks Neither? and Lanna answers Nut. files.libcom.org
- 18The glans: the rounded structure at the tip of the penis or clitoris.
In persons troubled with tight foreskins, the matter from the urethra becomes collected between the foreskin and the nut of the penis.
1864, Edward Cox, Cox's Companion to the Sea Medicine ChestGLANS, in anatomy, the anterior extremity of the penis, called by other different names, as the head of the penis, the nut of the penis, and the balanus of the penis.
1763, A New and Complete Dictionary of Arts and SciencesNote
An anatomical word that has dropped out of use. The 1763 edition of A New and Complete Dictionary of Arts and Sciences lists the nut of the penis alongside the head of the penis and the balanus. Dr. Chamberlain's Midwifes Practice (1665) applies it to the clitoris as well. In Peter Fryer's The Birth Controllers (1965) it serves only as a plainer alternative to glans, the term to use now.
Checked 31 Oct 2026 · 6 facts
- The original edition appeared in 1754–1755; the second edition appeared in 1763–1764. wellcomecollection.org
- The dictionary's glans entry lists nut of the penis alongside head of the penis and balanus of the penis. en.wiktionary.org
- Dr. Chamberlain's Midwifes Practice was published in 1665. wellcomecollection.org
- Dr. Chamberlain's Midwifes Practice applies nut to the clitoris. en.wiktionary.org
- Peter Fryer's The Birth Controllers was first published in 1965. marxists.org
- Fryer uses nut of the penis as an explanatory equivalent of glans. en.wiktionary.org
- 19An extravagantly fashionable young man given to showy, stylish dress.
The young nut strolled down the promenade in a peacock-blue suit.
Society columns mocked the nuts parading their tailored finery at the races.
Note
A dated piece of British and Irish slang for a young dandy. Saki's "The Dreamer" in Beasts and Superbeasts (1914) capitalizes it, "what they call a Nut," and that "what they call" marks it as fashionable jargon even then. A modern reader is far more likely to hear the "crazy person" meaning, so the word needs context to work today.
Checked 31 Oct 2026 · 3 facts
- Nut is dated British and Irish slang for an extravagantly fashionable young man. en.wiktionary.org
- Saki wrote Beasts and Super-Beasts, first published in 1914; its title-page transcription also gives 1914. en.wikipedia.org
- The Dreamer contains the quoted wording with a capital N; the fictional speaker is Adela Chemping. gutenberg.org
- 20A cookie or small cake formed into a rounded shape.
- 21A reserve of money held by an extremely wealthy investor, large enough to maintain a high standard of living even if all other funds are lost.
- 22Among printers, the en: a unit of measurement equal to half the height of the type currently in use.
- 23The tumbler of a gunlock: the rotating part linked to the hammer, notched to hold it at half and full cock.
- 24A projection on each side of an anchor's shank that holds the stock in place.
- 25A nose ring traditionally worn by women in India; another spelling of nuth.
Showing meanings only.
Practice
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Origins
"Nut" comes from Middle English nute or note, from Old English hnutu, going back through Proto-West Germanic and Proto-Germanic *hnuts ("nut"). Its root *knu- may have been shared with Proto-Celtic *knūs and Latin nux ("nut"); because it appears only in Germanic, Celtic, and Italic, some have argued it may come from a non-Indo-European substrate language. Related words include Dutch noot, German Nuss, and Swedish nöt.
Checked 1 Nov 2026 · 4 facts
- English nut descends through Middle English note or nute and Old English hnutu from Proto-West Germanic and Proto-Germanic *hnuts, meaning nut. en.wiktionary.org
- The root *knu- may be shared with Proto-Celtic *knūs and Latin nux, meaning nut. en.wiktionary.org
- The root's restriction to Germanic, Celtic, and Italic has contributed to proposals of a non-Indo-European substrate origin. en.wiktionary.org
- Dutch noot, German Nuss, and Swedish nöt are related words. en.wiktionary.org
The Scottish interjection nut, meaning "no," is a variant of not.
Checked 1 Nov 2026 · 1 fact
- The Scottish interjection nut meaning "no" is a variant of not. en.wiktionary.org