Sixth

adjective
1.
next after the fifth; being the ordinal number for six.
2.
being one of six equal parts.
noun
3.
a sixth part, especially of one (1/6).
4.
the sixth member of a series.
5.
Music.

a tone on the sixth degree from a given tone (counted as a first).
the interval between such tones.
the harmonic combination of such tones.

adverb
6.
in the sixth place; sixthly.
adjective
1.
(usually prenominal)

coming after the fifth and before the seventh in numbering or counting order, position, time, etc; being the ordinal number of six: often written 6th
(as noun): the sixth to go

noun
2.

one of six equal or nearly equal parts of an object, quantity, measurement, etc
(as modifier): a sixth part

3.
the fraction equal to one divided by six (1/6)
4.
(music)

the interval between one note and another note six notes away from it counting inclusively along the diatonic scale
one of two notes constituting such an interval in relation to the other See also major (sense 14), minor (sense 4), interval (sense 5)
short for sixth chord

adverb
5.
Also sixthly. after the fifth person, position, etc
sentence connector
6.
Also sixthly. as the sixth point: linking what follows to the previous statements