key of the door

noun

Twenty-one.

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Meanings

noun
  1. bingoTwenty-one.

Origin

A reference to the traditional age of the majority.

Full word history & related roots →
Cite this entry
APA

key of the door. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/key%20of%20the%20door

MLA

“key of the door.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/key%20of%20the%20door. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “key of the door,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/key%20of%20the%20door.

Source: key of the door on Wiktionary, CC BY-SA 4.0.