.45

noun

A standard kind of firearm designed to fire bullets that are approximately 0.45 inch in diameter.

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Meanings

noun.45 (plural .45s)

plural .45s

  1. engineeringA standard kind of firearm designed to fire bullets that are approximately 0.45 inch in diameter.

    He was wearing the normal jungle fatigues and had a .45 in a holster on his waist.

    2013, T. Van Ewell, Recon Airplane Company: III Corps, Vietnam, page 182
Cite this entry
APA

.45. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/.45

MLA

“.45.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/.45. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “.45,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/.45.

Source: .45 on Wiktionary, CC BY-SA 4.0.