Fourth
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): ( a.) Forming one of four equal parts into which anything may be divided.
(2): ( n.) One of four equal parts into which one whole may be divided; the quotient of a unit divided by four; one coming next in order after the third.
(3): ( n.) The interval of two tones and a semitone, embracing four diatonic degrees of the scale; the subdominant of any key.
(4): ( a.) Next in order after the third; the ordinal of four.
King James Dictionary [2]
Fourth, a. The ordinal of four the next after the third.
Fourth, n. In music, an interval composed of two tones and a semitone. Three full tones compose a triton, or fourth redundant.
