Ninth vs. Nine — What's the Difference?

In music, a ninth is a compound interval consisting of an octave plus a second. Like the second, the interval of a ninth is classified as a dissonance in common practice tonality.

The cardinal number equal to 8 + 1.

The ordinal number matching the number nine in a series.

The ninth in a set or sequence.

One of nine equal parts.

Something having nine parts, units, or members.

A harmonic or melodic interval of an octave and a second.

(Games) A playing card marked with nine pips.

The tone at the upper limit of such an interval.

(Baseball) The nine players on a side, or the whole team.

A chord consisting of a root with its third, seventh, and ninth.

Nine Greek Mythology The nine Muses.

The ordinal form of the number nine.

A size, as in clothing or shoes, designated as nine.

The person or thing in the ninth position.

(Sports) The first or second 9 holes of an 18-hole golf course.

One of nine equal parts of a whole.

A numerical value equal to 9; the number following eight and preceding ten.

(music) The compound interval between any tone and the tone represented on the ninth degree of the staff above it, as between one of the scale and two of the octave above; the octave of the second, consisting of 13 or 14 semitones (called minor and major ninth).

Describing a group or set with nine elements.

To lose a ninth.

The digit or figure 9.

To divide by nine.

(card games) A playing card with nine pips.

Following the eight and preceding the tenth; coming after eight others.

(weaponry) A nine-millimeter semi-automatic pistol.

Constituting or being one of nine equal parts into which anything is divided.

A statistical unit of proportion (of reliability, purity, etc.).

The quotient of one divided by nine; one of nine equal parts of a thing; the next after the eighth.

(baseball) A baseball club, team, or lineup (composed of nine players).

An interval containing an octave and a second.

Eight and one more; one less than ten; as, nine miles.

Position nine in a countable series of things;

The number greater than eight by a unit; nine units or objects.

A ninth part

A symbol representing nine units, as 9 or ix.

Coming next after the eighth and just before the tenth in position

A group of nine people; as, the New York nine (a baseball team).

The cardinal number that is the sum of eight and one

A team of professional baseball players who play and travel together;

Denoting a quantity consisting of one more than eight and one less than ten