Meaning

2 senses
  1. (historical, slang)The steel helmet worn by soldiers during World War I.

    a lightweight protective helmet (plastic or metal) worn by construction workers

  2. A tinfoil hat.

Forms

plural: tin hats

Synonyms

3 synonyms
Close in meaning
  • a lightweight protective helmet (plastic or metal) worn by construction workers:hard hatsafety hat

See also

neighbours in the dictionary
tin hat — meaning, examples, forms, synonyms | Krumeto