Meanings
Cite this entry
APA
be mum. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/be%20mum
MLA
“be mum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/be%20mum. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “be mum,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/be%20mum.
Source: be mum on Wiktionary, CC BY-SA 4.0.