sixth

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The ordinal number matching the number six in a series.
2. n. One of six equal parts.
3. n. Music An interval of six degrees in a diatonic scale.
4. n. Music A tone separated by this interval from a given tone.
5. n. Music The harmonic combination of two tones separated by this interval.
6. n. Music The sixth tone of a scale; the submediant.

Century Dictionary and Cyclopedia

1. Being the first after the fifth: the ordinal of six
2. Being one of six equal parts into which a whole is divided.
3. n. A sixth part.
4. n. In early English law, a sixth of the rents of the year, or of movables, or both, granted or levied by way of tax.
5. n. In music:
6. n. A tone on the sixth degree above or below a given tone.
7. n. The interval between any tone and a tone on the sixth degree above or beiow it.
8. n. The harmonic combination of two tones at the interval thus described
9. n. In a scale, the sixth tone from the bottom; the submediant: solmizated la. The typical interval of the sixth is that between the first and the sixth tones of a major scale, which is acoustically represented by the ratio 3:5. Such a sixth is called major. A sixth a half-step shorter is called minor; one two half-steps shorter is called diminished; and one a half-step longer is called augmented, extreme, etc. Major and minor sixths are classed as consonances; other sixths as dissonances.
10. n. the French sixth, consisting of the first, second, sixth, and sharped fourth of a minor scale;
11. n. the German sixth, consisting of the first, third, sixth, and sharped fourth of such a scale;
12. n. the Italian sixth, consisting of the first, sixth, and sharped fourth of such a scale.

Wiktionary

1. adj. The ordinal form of number six.
2. n. not used in the plural The person or thing in the sixth position.
3. n. One of six equal parts of a whole.
4. n. music 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. (Note that the interval covers six notes counting inclusively, for example C-D-E-F-G-A.)

GNU Webster's 1913

1. adj. First after the fifth; next in order after the fifth.
2. adj. Constituting or being one of six equal parts into which anything is divided.
3. n. The quotient of a unit divided by six; one of six equal parts which form a whole.
4. n. The next in order after the fifth.
5. n. (Mus.) The interval embracing six diatonic degrees of the scale.

WordNet 3.0

1. adj. coming next after the fifth and just before the seventh in position
2. n. position six in a countable series of things
3. n. the musical interval between one note and another six notes away from it
4. n. one part in six equal parts