From The Collaborative International Dictionary of English v.0.44 [gcide]:
Fifth \Fifth\, adjective [OE. fifte, fifthe, AS. f[=i]fta. See {Five}.]
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.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
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.
From WordNet (r) 2.0 [wn]:
adjective
1: coming next after the fourth and just before the sixth in position [syn: {5th}]
noun
1: a quantity of liquor equal to one fifth of a United States gallon
2: position five in a countable series of things; "he was fifth out of several hundred runners"
3: a fifth part [syn: {one-fifth}, {fifth part}, {twenty percent}]
4: the musical interval between one note and another five notes away from it
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
45 Moby Thesaurus words for "fifth": 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
From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:
Fifth An enhanced version of FORTH. M.S. Dissertation, Cliff Click , Texas A&M, 1985. Available from the Software Construction Co, (409)696-5432.
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