Fourth(a.) Next in order after the third; the ordinal of four.
Fourth(a.) Forming one of four equal parts into which anything may be divided.
Fourth(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.
Fourth(n.) The interval of two tones and a semitone, embracing four diatonic degrees of the scale; the subdominant of any key.
Fourthly(adv.) In the fourth place.
Words within fourthly