nut

• 指有坚硬外壳的果实，内有可食用的果仁；也指坚果的果仁本身。也指螺母，即与螺栓配合使用的金属零件。也作俚语指疯子或怪人。

A noun referring to a fruit consisting of a hard or tough shell around an edible kernel, or the kernel itself.

1. Food itemA1formal

   A fruit consisting of a hard shell containing an edible kernel.

   坚果

   • She added walnuts and almonds to the salad.
   • He is allergic to peanuts and other nuts.
   • Nuts are a healthy snack rich in protein.

2. Hardware componentB1formal

   A small metal piece with a threaded hole used to fasten a bolt.

   螺母

   • He tightened the nut with a wrench.
   • The bolt and nut must match in size.
   • She replaced the loose nut on the bicycle wheel.

3. Crazy personB2informal

   A slang term for someone who is eccentric, crazy, or foolish.

   疯子

   • He's a total nut for driving in this storm.
   • Don't listen to him; he's a nut.
   • That guy is a nut who believes in conspiracy theories.

   同义词crackpotcuckooeccentricfruitcakekooklunaticmadmanmaniacnutcaseoddballpsychoscrewballwackoweirdo

• 动词，指采集或寻找坚果；非正式用法中指用头撞击。

A verb used to indicate the act of gathering or searching for nuts, or (informally) to butt or hit with the head.

1. To hit with the headC1informalbritish

   To strike someone with the top of one's head, typically in a fight or aggressive manner.

   用头顶撞

   • He nutted the other player during the match.
   • The bouncer nutted the troublemaker to subdue him.
   • She was furious and nutted him right in the face.