forty-five

noun

for·​ty-five ˌfȯr-tē-ˈfīv How to pronounce forty-five (audio)
Synonyms of forty-fivenext
1
: a number that is five more than 40 see Table of Numbers
2
: a .45 caliber handgun
usually written .45
3
: a phonograph record designed to be played at 45 revolutions per minute
usually written 45
forty-five adjective
forty-five pronoun, plural in construction

Examples of forty-five in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The forty-five minutes felt useless; the pre-meeting did not. Nell Derick Debevoise Dewey, Forbes.com, 28 May 2026 So the academy—a panel of forty-five linguists, scientists, philosophers, and others—makes formal recommendations about how the language can and cannot change. Katie Thornton, Harpers Magazine, 26 May 2026 The majority of it was a forty-five-million-dollar share in a trust created from her late father’s estate, which was, and remains, inaccessible to Burden. Jessica Winter, New Yorker, 23 May 2026 The younger, Layla, writes and mails lengthy letters to my dog—not to me or my spouse, but to my forty-five pound blue heeler Galilee. Literary Hub, 4 May 2026 See All Example Sentences for forty-five

Word History

First Known Use

circa 1623, in the meaning defined at sense 1

Time Traveler
The first known use of forty-five was circa 1623

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Cite this Entry

“Forty-five.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/forty-five. Accessed 29 May. 2026.

Kids Definition

forty-five

noun
for·​ty-five
ˌfȯrt-ē-ˈfīv
: a .45 caliber pistol
usually written .45

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