sixth
noun
plural sixths
ˈsiks(ts),
ˈsiks(t)ths
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
ˈsiksth-lē
adverb
ˈsikst-
Sixthly, don't let your screaming tenor soar an octave above all the balance of the chorus …
—Mark Twain
Cite this Entry
“Sixth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sixth. Accessed 8 Jul. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
