420

See also: 4-2-0 and 4/20

English

Pronunciation
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Etymology 1

So named because it is 420 centimetres long.

Noun

420 (plural 420s)

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

Etymology 2

Likely influenced by the time (4:20 pm) a particular group would meet in search of marijuana, circa 1971; subsequently spread as a cipher through the San Francisco Bay area and adopted among Grateful Dead fans.[1][2]

Alternative forms

Noun

420 (slang, especially Canada, US)

  1. Cannabis.
  2. (usually as a modifier) Pertaining to cannabis, its consumption, or cannabis culture.
    Late nights at the recording studio were always 420 friendly.
  3. April 20 (abbreviated 4/20 in the US), as an occasion to celebrate cannabis culture.

References
  1. Oxford Dictionaries, "We added 420 to the OED. Here’s how it happened.", 20 April 2017
  2. Oxford Living Dictionaries, "420"

Further reading

Anagrams
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