Meanings
proper noun
- UKhumorousFourth of July.
I have a British colleague who, at the end of our writing group meeting, wished us all a "happy treason day" 😂
2020 July 3, margaret_emma, Twitter, archived from the original on 27 Sep 2022
Origin
In reference to the American Revolutionary War, which would be considered treason against the United Kingdom at that time.
Full word history & related roots →Cite this entry
APA
Treason Day. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Treason%20Day
MLA
“Treason Day.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Treason%20Day. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Treason Day,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Treason%20Day.
Source: Treason Day on Wiktionary, CC BY-SA 4.0.