sixth

Sixth is the ordinal form of the number six. It denotes position in a sequence, such as the sixth person in line or the sixth item in a list. The word functions as both an adjective and a noun and appears in dates, measurements, and naming conventions.

In mathematics, a sixth represents one of six equal parts of a whole (a fraction of 1/6). It also marks the position of a term in a finite or infinite sequence (the sixth term). More generally, "sixth" can describe the sixth power or the sixth root of a quantity in algebraic contexts.

In music, the term "sixth" refers to an interval spanning a sixth in pitch: a major sixth consists of nine semitones and a minor sixth consists of eight semitones. A sixth chord adds a note a sixth above the root, producing a commonly used harmonic color.

In the calendar, the sixth day of a month is the sixth; the sixth month of the Gregorian calendar is June.

In culture and institutions, "Sixth" labels particular entities, such as the Sixth Amendment to the United States Constitution, or historical designations like the Sixth Dynasty of Egypt or the Sixth Army in military history.