Pronunciation: /ˈtɪnˌfɔɪl hæt/
noun a type of hat made out of tinfoil, often associated with conspiracy theories
A1 She wore a tinfoil hat to protect herself from mind control.
A2 Some people believe that wearing a tinfoil hat can block out harmful signals.
B1 The conspiracy theorist was convinced that his tinfoil hat kept the government from reading his thoughts.
B2 Despite the ridicule, he continued to wear his tinfoil hat as a form of protection against electromagnetic waves.
C1 The scientist dismissed the idea of a tinfoil hat as a legitimate defense against surveillance technology.
C2 The tinfoil hat conspiracy theory has been debunked by numerous studies and experts in the field.
formal Some conspiracy theorists believe that wearing a tinfoil hat can protect their thoughts from being read.
informal My uncle swears by his tinfoil hat to block out government mind control.
slang I can't take him seriously with that tinfoil hat on his head.
figurative She always wears a tinfoil hat when discussing politics, convinced that everyone is out to get her.
wore
tinfoil hats
more tinfoil hat
most tinfoil hat
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to wear a tinfoil hat
wearing a tinfoil hat
worn tinfoil hat