1
: one that is number six in a series
We'll be arriving on the sixth.
Her office is the sixth on the left.
see Table of Numbers
2
: one of six equal parts of something
one sixth of the total
3
a
: a musical interval embracing six diatonic degrees
b
: a tone at this interval
specifically : submediant
c
: the harmonic combination of two tones a sixth apart
sixth adjective or adverb
the book's sixth chapter
the state's sixth largest city
sixthly adverb
Sixthly, don't let your screaming tenor soar an octave above all the balance of the chorus … Mark Twain

Examples of sixth in a Sentence

Only about a sixth of the town voted for her.
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.
Magno’s assist was his third this season and Fernández notched his sixth. ABC News, 23 Aug. 2026 With five unanswered runs, Arizona had all the momentum, until Wilyer Abreu and Contreras came up with back-to-back one-out singles against Pfaadt in the sixth. Mac Cerullo, Boston Herald, 19 Aug. 2026 Another walk — this one by reliever Alex McFarlane (1-1) — came back to bite the Phillies in the sixth. Miami Herald, 19 Aug. 2026 Alec Bohm, who also had an RBI single in the first, opened the scoring in the sixth with a run-scoring double. CBS News, 19 Aug. 2026 See All Example Sentences for sixth

Word History

First Known Use

12th century, in the meaning defined at sense 1

Time Traveler
The first known use of sixth was in the 12th century

Browse Nearby Words

Cite this Entry

“Sixth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sixth. Accessed 28 Aug. 2026.

Kids Definition

plural sixths
1
: one that is number six in a series see number
2
: the difference in pitch between the first tone and the sixth tone of a scale
sixth adjective or adverb
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