nuts

/nʌts/
noun
  1. Hard-shelled fruits or seeds that are often eaten as food, such as almonds, walnuts, or peanuts.
    • She packed a handful of nuts for a healthy snack.
    • The recipe calls for chopped nuts to add crunch.
    • Squirrels gather nuts to store for the winter.
  2. A metal piece with a threaded hole that screws onto a bolt to fasten things together.
    • Make sure the nuts and bolts are properly aligned before tightening.
    • The bicycle wheel came loose because the nut had fallen off.
    • He tightened the nut with a wrench to secure the shelf.
  3. A person who is very enthusiastic or obsessed with something (informal).
    • She's a fitness nut who goes to the gym every day.
    • Only a real history nut would visit every battlefield in the country.
    • My uncle is a total car nut — he owns five vintage models.
adjective
  1. Crazy or very foolish (informal).
    • The crowd went nuts when the band played their favorite song.
    • Are you nuts? You can't ride a bike in this storm.
    • That idea is completely nuts — it will never work.
  2. Very enthusiastic or excited about something (informal).
    • The fans were nuts for the new superhero movie.
    • He's nuts about playing the guitar and practices for hours.
    • The kids went nuts over the ice cream truck.
Antonyms
interjection
  1. Used to express disappointment, frustration, or rejection (informal).
    • Nuts! I forgot my keys inside the car.
    • Nuts, the store is already closed.
    • Oh nuts, I missed the bus again.