- 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 formsnut·like, adjective
British Dictionary definitions for hard nut to crack (1 of 2)
abbreviation for (in Britain)
British Dictionary definitions for hard nut to crack (2 of 2)
- 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
Derived Formsnutlike, adjective
Word Origin for nut
Science definitions for hard nut to crack
Idioms and Phrases with hard nut to crack (1 of 2)
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]
Idioms and Phrases with hard nut to crack (2 of 2)
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