45

[ fawr-tee fahyv ]
See synonyms for 45 on Thesaurus.com
noun,
  1. plural 45s, 45's. 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.

Origin of 45

1
First recorded in 1945–50

Other definitions for .45 (2 of 2)

.45

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use 45 in a sentence

  • I just cast about.-45- But I know a frightful lot of painters.

    Marriage | H. G. Wells