sixth

adj

1. (not-comparable)The ordinal form of the number six.

   “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.”

   “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.”

   “[T]he law codes drafted in Athens in the late seventh and early sixth centuries were the work of individuals, Drakon and then Solon.”

   “On Monday, the federal Immigration and Customs Enforcement agency placed a similar detainer on Melvin Jovel, 18, who on Sunday was the sixth person to be arrested in the case.”

   “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.”

noun

1. The person or thing in the sixth position.
2. One of six equal parts of a whole.

   “On the moon, however the weight of a pound-mass (lb or lbm) is only about one sixth of a pound-force (lbf).”

3. 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.

verb

1. (informal, nonstandard, rare)To divide by six, equivalent to multiplying a denominator by six.

   “Why would anyone use sixthing when any (N − a²) divisible by 6 would also be divisible by 3? The answer is that sometimes the numerator and/or the denominator is simpler in sixthing,”