Word.ws English Dictionary

tinfoil hats

tinfoil hats is the plural of tinfoil hat.

Meaning of tinfoil hat

Noun

tinfoil hat (plural tinfoil hats)

  1. A piece of headgear made from one or more sheets of tin foil, aluminium foil, or other similar material; especially when worn in the belief that it shields the brain from electromagnetic fields or against mind control or mind reading.
    • Jeanne Due's ingenuity has sent the most remarkable of hats, this being the now notorious tinfoil hat, pictured elsewhere. The strangest part about this weird creation, however, is the fact that it is not unbecoming, but quite wearable.1916, Roger W Allen, editor, Millinery Trade Review, volume 41, page 27
    Synonyms:
    TFH
  2. (derogatory, metonymically) A conspiracy theorist.

Questions about tinfoil hats

What is tinfoil hats the plural of?
Tinfoil hats is the plural of tinfoil hat.

Words near tinfoil hats in the dictionary

  1. Tinewald
  2. tineæ
  3. tinfish
  4. tinfoil
  5. tinfoil hat
  6. tinfoil hats
  7. tinfoil hatter
  8. tinfoil hatters
  9. tinfoil hattery
  10. tinfoil-hatter
  11. tinfoil-hatters

Source and license

Adapted from Wiktionary: tinfoil hats (page history and authors); tinfoil hat (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “tinfoil hats.” Word.ws, https://word.ws/tinfoil_hats. Based on Wiktionary, CC BY-SA 4.0.