- a person who is very enthusiastic about something; buff; enthusiast; devotee: He's a real circus nut.
- an extremely concerned or zealous person: My boss is a nut on double-checking everything.
- a foolish, silly, or eccentric person.
- an insane person; psychotic.
- the operating expenses, usually figured weekly, of a theatrical production or other commercial enterprise; a break-even point.
- the total cost of producing a theatrical production or of forming and opening any new business venture.
- the ledge, as of ebony, at the upper end of the fingerboard, over which the strings pass.
- the movable piece at the lower end of the bow, by means of which the hairs may be slackened or tightened.
verb (used without object), nut·ted, nut·ting.
- a problem difficult to solve; a formidable undertaking.
- a person difficult to know, understand, or convince.
- Sometimes Offensive.foolish, silly, or insane.
- confused; unreasonable.
- mistaken or wrong: You're off your nut if you think such a plan can succeed.
Origin of nut
Related Words for hard nut to crackcomplexity, complication, difficulty, entanglement, headache, mess, predicament, problem, quagmire, quandary, snafu, snarl, trouble
abbreviation for (in Britain)
- an eccentric person
- a person who is mentally disturbed
- the ledge or ridge at the upper end of the fingerboard of a violin, cello, etc, over which the strings pass to the tuning pegs
- the end of a violin bow that is held by the player
verb nuts, nutting or nutted
Word Origin for nut
"hard seed," Old English hnutu, from Proto-Germanic *khnut- (cf. Old Norse hnot, Dutch noot, Old High German hnuz, German nuß "nut"), from PIE *kneu- "nut" (cf. Latin nux; see nucleus). Sense of "testicle" is attested from 1915. Nut-brown is from c.1300 of animals; c.1500 of complexions of women.
Meaning "crazy person, crank" is attested from 1903, (British form nutter first attested 1958; nut-case is from 1959); see nuts. American English slang sense of "amount of money required for something" is first recorded 1912. The nut that goes onto a bolt is first recorded 1610s (used of other small mechanical pieces since early 15c.). Nuts and bolts "fundamentals" is from 1960.
hard nut to crack
Also, tough nut to crack. A difficult problem; also, an individual who is difficult to deal with. For example, This assignment is a hard nut to crack, or It won't be easy getting her approval; she's a tough nut to crack. This metaphoric expression alludes to hard-shelled nuts like walnuts. [Early 1700s]
In addition to the idioms beginning with nuts
- nuts about, be
- nuts and bolts, the
- drive someone crazy (nuts)
- from soup to nuts
- hard nut to crack