fifth

noun

plural fifths ˈfiths How to pronounce fifth (audio)
ˈfif(t)ths,
ˈfif(t)s
1
: one that is number five in a series
Payment is due on the fifth of the month.
see Table of Numbers
2
: one of five equal parts of something
spent a fifth of their income on rent
3
a
: the musical interval embracing five diatonic degrees
b
: a tone at this interval
specifically : dominant sense 1
c
: the harmonic combination of two tones at this interval
4
: a unit of measure for liquor equal to one fifth of a U.S. gallon (0.757 liter)
5
the Fifth : the Fifth Amendment of the U.S. Constitution
also : the right accorded by the Fifth Amendment to refuse to testify against oneself see also plead the Fifth, take the Fifth
fifth adjective or adverb
the fifth annual food festival
She finished fifth in the race.
fifthly adverb
Fourthly, it takes a lot of concrete to make a nuclear power plant. Fifthly, there is no place to put the waste that is safe. Victor Odlivak

Examples of fifth in a Sentence

The bill is due on the fifth of each month. She donated a fifth of her income to charity. bought a fifth of whiskey
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.
Pone hit a sacrifice fly to put Ole Miss up 5-4, Mackenzie Pickens hit and RBI single in the fifth for a two-run advantage and Brady sent a solo home run to left-center field in the seventh to set the final score. Arkansas Democrat-Gazette, Arkansas Online, 26 May 2025 Junk fanned Ward with runners on first and second to end the sixth with Miami leading 3-1. Miami scored twice in the fifth to go ahead 3-1. Field Level Media, Miami Herald, 25 May 2025 With less than three hundred hours of flight time—about a fifth of the minimum required to qualify for a job as a commercial pilot—Fielder pursues his 737 type rating. Gideon Lewis-Kraus, New Yorker, 25 May 2025 Chinese nationals made up a fifth of Harvard's foreign student intake in 2024, the university says. Laurie Chen, USA Today, 23 May 2025 See All Example Sentences for fifth

Word History

Etymology

Middle English fifte, fifthe, from Old English fīfta, from fīf five

First Known Use

1557, in the meaning defined at sense 2

Time Traveler
The first known use of fifth was in 1557

Cite this Entry

“Fifth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fifth. Accessed 3 Jun. 2025.

Kids Definition

fifth

noun
1
: one that is number five in a series see number
2
: the difference in pitch between the first tone and the fifth tone of a scale
fifth adjective or adverb
fifthly adverb

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