Meanings
- abbreviationinitialismInitialism of Medicare For All; a left-wing political movement in the United States advocating for a universal, single-payer healthcare system run entirely by the government, as opposed to for-profit, private insurance companies.
- abbreviationinitialismInitialism of MPEG-4 Audio.
Origin
(Sense 1): Initialism of male for any/all.
Full word history & related roots →Cite this entry
M4A. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/M4A
“M4A.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/M4A. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “M4A,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/M4A.
Source: M4A on Wiktionary, CC BY-SA 4.0.