Meanings
4201
4202
alternative 4:20 · alternative 4/20 · alternative four-twenty · alternative four twenty
- CanadaUSespeciallyslanguncountableCannabis.
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 - CanadaUSespeciallyslanguncountableusuallyPertaining to cannabis, its consumption, or cannabis culture.
Late nights at the recording studio were always 420 friendly.
- CanadaUSespeciallyslanguncountableApril 20 (abbreviated 4/20 in the US), as an occasion to celebrate cannabis culture.
4203
plural 420s
- CanadaSouth AsiaUSespeciallyslangfraudster, cheater, forger; a smooth operator
Synonyms & antonyms
Origin
420 · noun
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.
Full word history & related roots →420 · noun
From section 420 of the Indian Penal Code (and its corresponding versions in modern Pakistan and Bangladesh), which criminalizes cheating.
Full word history & related roots →Cite this entry
420. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/420
“420.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/420. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “420,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/420.
Source: 420 on Wiktionary, CC BY-SA 4.0.