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English numbers (edit)
[a], [b] ←  5 6 7  → [a], [b]
    Cardinal: six
    Ordinal: sixth, ecto-
    Latinate ordinal: senary
    Multiplier: sextuple, sixfold
    Distributive: sextuply
    Collective: hexad, sixsome
    Fractional: sixth
    Number of musicians: sextet

Alternative formsEdit


From earlier sixt, from Middle English sixte, from Old English siexta, from Proto-Germanic *sehstô.


  • IPA(key): /sɪk(s)θ/, [sɪk(s)θ], [sɪk(s)t̪] (before a consonant often reduced to [sɪks])
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  • Rhymes: -ɪksθ, -ɪkθ
  • Homophone: six (frequent reduced form before a consonant)


sixth (not comparable)

  1. The ordinal form of the number six.
    • 1611, The Holy Bible, [] (King James Version), London: [] Robert Barker, [], OCLC 964384981, Genesis 1:31:
      And * God ſaw euery thing that hee had made : and behold, it was very good. And the euening and the moꝛning were the ſixth day.
      Transliterated: And God saw everything that he had made: and behold, it was very good. And the evening and the morning were the sixth day.
    • 1892, Western Association of Writers, Sayings and Doings of the Sixth General Meeting[1], Jones Brothers Publishing Company, pages 271-272:
      Dr. Ridpath, in his usual happy manner, thanked the Executive Committee and the various members of the Association who had so earnestly cooperated with him in the work of the Sixth Annual Meeting now drawing to a close.
    • 2011 February 25, Peter Dicken, Global Shift, Sixth Edition: Mapping the Changing Contours of the World Economy[2], Guilford Press, page xi:
      As this sixth edition is published in 2011, it is exactly 25 years since the publication of the first edition in 1986. That, in itself, is a very sobering thought, for all kinds of reasons.


6th, 6th, VIth; (in names of monarchs and popes) VI



sixth (plural sixths)

  1. (not used in the plural) The person or thing in the sixth position.
  2. One of six equal parts of a whole.
  3. (music) The interval between one note and another, five notes higher in the scale, for example C to A, a major sixth, or C to A flat, a minor sixth. (Note that the interval covers six notes counting inclusively, for example C-D-E-F-G-A.)


  • (one of six equal parts):



sixth (third-person singular simple present sixths, present participle sixthing, simple past and past participle sixthed)

  1. to divide by six, which also means multiplying a denominator by six
    • 1993 Dead Reckoning: Calculating Without Instruments page 102
      Why would anyone use sixthing when any (Na2) divisible by 6 would also be divisible by 3? The answer is that sometimes the numerator and/or the denominator is simpler in sixthing,

Related termsEdit