2. The next in order after the fifteenth; the sixth after the tenth.

3. (Mus.) An interval comprising two octaves and a second. Moore

(Encyc. of Music.)

Sixth (?), a. [From Six: cf. AS. sixta, siexta.] 1. First after the

fifth; next in order after the fifth.

2. Constituting or being one of six equal parts into which anything is

divided.

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Sixth (?), n. 1. The quotient of a unit divided by six; one of six

equal parts which form a whole.