Fifth

a.	1.	Next in order after the fourth; - the ordinal of five.
	2.	Consisting of one of five equal divisions of a thing. Fifth monarchy men (Hist.) a fanatical sect in England, of the time of the commonwealth, who maintained that there would be a fifth universal monarchy, during which Christ would reign on earth a thousand years. Fifth wheel a horizontal wheel or segment above the fore axle of a carriage and beneath the body, forming an extended support to prevent careening.
n.	1.	The quotient of a unit divided by five; one of five equal parts; a fifth part.
	2.	(Mus.) The interval of three tones and a semitone, embracing five diatonic degrees of the scale; the dominant of any key.

Noun	1.	fifth - a quantity of liquor equal to one fifth of a United States gallon
	2.	fifth - position five in a countable series of things; "he was fifth out of several hundred runners"
	3.	fifth - a fifth part Synonyms: fifth part, one-fifth, twenty percent
	4.	fifth - the musical interval between one note and another five notes away from it
Adj.	1.	fifth - coming next after the fourth and just before the sixth in position Synonyms: 5th

Fifth - An enhanced version of FORTH. M.S. Dissertation, Cliff Click , Texas A&M, 1985. Available from the Software Construction Co, (409)696-5432.

consecutive intervals, decimalization, decimation, degree, diapason, diatessaron, diatonic interval, diatonic semitone, enharmonic diesis, enharmonic interval, fivefold, fourth, half step, halftone, interval, less semitone, melodic interval, note, octave, parallel octaves, pentad, pentadic, pentastyle, pentavalent, quinary, quincuncial, quinquefid, quinquennial, quinquepartite, quinquepartition, quinquesection, quintuple, quintuplicate, second, semitone, seventh, sextipartition, sixth, step, tenth, third, tithe, tone, unison interval, whole step