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View synonyms for .45

.45

1

noun

, plural .45s, .45's.
  1. a pistol, revolver, or cartridge of .45-caliber, or having a diameter of .45 inch.

45

2

[ fawr-tee fahyv ]

noun

, plural 45s, 45's.
  1. plural 45s 45s a seven-inch phonograph record played at 45 r.p.m., especially a popular-music single:

    She’s in the market for a phonograph so she can play her grandfather’s mint collection of 45s from the 1960s.

  2. an identifier of or nickname for Donald Trump, the 45th U.S. president, alternately used with disparaging intent by opponents and with affection by supporters.

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Word History and Origins

Origin of .451

First recorded in 1945–50

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