nut
[noun]
Synonyms:
- madman, crank (informal), lunatic, maniac, nutcase (slang), psycho (slang)
- head, brain, mind, reason, senses

[TahlilGaran] English Synonym Dictionary ▲

NUT, the /ˌen juː ˈtiː/ abbreviation for
the National Union of Teachers; one of the main professional trade unions which represents teachers in England and Wales, in both government and private schools

[TahlilGaran] Dictionary of Contemporary English ▲

I. nut¹ S3 /nʌt/ noun [countable]
[Language: Old English; Origin: hnutu]

1. FOOD a dry brown fruit inside a hard shell, that grows on a tree:
a pine nut
roasted nuts
We were sitting round the fire cracking nuts (=opening them).

2.
TOOL a small piece of metal with a hole through the middle which is screwed onto a bolt to fasten things together:
Use a wrench to loosen the nut.

3. CRAZY PERSON informal someone who is crazy or behaves strangely:
My dad is such a nut.
What are you, some kind of nut?

4. golf/opera etc nut informal someone who is very interested in golf etc ⇒ fanatic:
You don’t have to be a sports nut to enjoy skiing.

5. SEX ORGAN nuts [plural] informal a man’s testicles

6. the nuts and bolts of something informal the practical details of a subject or job:
the nuts and bolts of government

7. tough/hard nut informal someone who is difficult to deal with:
He may have softened a bit in his old age but he’s still a tough nut.

8. a hard/tough nut to crack a difficult problem or situation:
Celtic have lost only once this season and will be a tough nut to crack.

9. be off your nut British English spoken informal to be crazy:
You must be off your nut!

10. do your nut British English spoken to become very angry or worried:
I didn’t get home till three – my mum did her nut!

11. HEAD British English spoken old-fashioned your head or brain
sb’s nut
Oh come on, use your nut!

[TahlilGaran] Dictionary of Contemporary English ▲

II. nut² verb (past tense and past participle nutted, present participle nutting) [transitive] British English spoken
to hit someone with your head Synonym : headbutt:
He just turned round and nutted me!

[TahlilGaran] Dictionary of Contemporary English ▲

nut
noun
I. food
ADJ. cashew, pistachio, etc. | chopped, salted
VERB + NUT crack, shell
NUT + NOUN oil

[TahlilGaran] Collocations Dictionary ▲

nut
II. for screwing onto a bolt
VERB + NUT put on, screw on, tighten | loosen, remove, unscrew

[TahlilGaran] Collocations Dictionary ▲

nut
nʌt
See: hard nut to crack or tough nut to crack

[TahlilGaran] English Idioms Dictionary ▲