Meaning of NUT in English

NUT

n. dry fruit contained in a shell; hard fruit of certain plants; square or hexagonal threaded metal piece which fastens onto a screw to secure it; person who is enthusiastic, buff; insane person (Slang); head of a person (Slang); operating expenses to be recovered for launching a movie or play (Slang)

Explanatory English dictionary bed edition.      Толковый словарь английского языка Редакция bed.