**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.

© Webster 1913.

**Sixth** (?), n.

**1.**

The quotient of a unit divided by six; one of six equal parts which form a whole.

**2.**

The next in order after the fifth.

**3.** Mus.

The interval embracing six diatonic degrees of the scale.

© Webster 1913.