A number

Abbreviation of alien registration number (“identification number for immigrants”).

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Meanings

nounA number (plural A numbers)

plural A numbers

  1. USabbreviationAbbreviation of alien registration number (“identification number for immigrants”).
Cite this entry
APA

A number. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/A%20number

MLA

“A number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/A%20number. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “A number,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/A%20number.

Source: A number on Wiktionary, CC BY-SA 4.0.