Word.ws English Dictionary

4/20

4/20 is the alternative form of 420.

Meaning of 420

Noun (1)

420 (plural 420s)

  1. A particular type of monohull dinghy with two sails, designed for two people.

Noun (2)

420 (uncountable)

  1. (Canada, US, especially, slang) Cannabis.
    • Sunday is 420 day, when lovers of marijuana get together to celebrate their fondness for weed.2025 April 20, Sandee LaMotte, “Marijuana hospital visits linked to dementia diagnosis within 5 years, study finds”, in CNN
  2. (Canada, US, especially, slang, usually) Pertaining to cannabis, its consumption, or cannabis culture.
    • Late nights at the recording studio were always 420 friendly.
  3. (Canada, US, especially, slang) April 20 (abbreviated 4/20 in the US), as an occasion to celebrate cannabis culture.

Noun (3)

420 (plural 420s)

  1. (Canada, South-Asia, US, especially, slang) fraudster, cheater, forger; a smooth operator

Questions about 4/20

What is 4/20 the alternative form of?
4/20 is the alternative form of 420.

Words near 4/20 in the dictionary

  1. 4-polytope
  2. 4-polytopes
  3. 4-to-1 rule
  4. 4-wheeler
  5. 4-wheelers
  6. 4/20
  7. 4/4
  8. 4/4 time
  9. 40
  10. 40 burger
  11. 40 burgers

Source and license

Adapted from Wiktionary: 4/20 (page history and authors); 420 (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: “4/20.” Word.ws, https://word.ws/4%2F20. Based on Wiktionary, CC BY-SA 4.0.