Eleventh

Part of speech: noun (n.)

1. The quotient of a unit divided by eleven; one of eleven equal parts.

2. The interval consisting of ten conjunct degrees; the interval made up of an octave and a fourth.

Part of speech: adjective (a.)

1. Next after the tenth; as, the eleventh chapter.

2. Constituting one of eleven parts into which a thing is divided; as, the eleventh part of a thing.

3. Of or pertaining to the interval of the octave and the fourth.