Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “nut”

nut

noun [C] (PERSON)   /nʌt/ infml
a person who is crazy, foolish, or strange: What kind of nut would leave a computer in his car overnight with the doors unlocked? A nut is also a person who is extremely enthusiastic about a particular activity or thing: Joyce is a nut for antiques – we’ve got a house full of them.
(Definition of nut noun (PERSON) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of nut

Browse related topics

You are looking at an entry to do with Of unsound mind, but you might be interested in these topics from the Psychology, psychiatry, & psychoanalysis topic area:

Definitions of “nut” in other dictionaries

Word of the Day

exercise

physical activity that you do to make your body strong and healthy

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More