- fifth
**1.**a traditional U.S. unit of*liquid volume*equal to 4/5 quart, which is the same as 1/5 gallon. The fifth contains exactly 46.2 cubic inches, or about 757.084 milliliters. This unit is an American version of the traditional bottle.**2.**a unit used in music to describe*the ratio in frequency between notes*. Two notes differ by a fifth if the higher note has frequency exactly 3/2 times the frequency of the lower one. On the standard 12-tone scale, the perfect fifth is very closely approximated as 7 half steps, corresponding to a frequency ratio of 2^{7/12}= 1.4983.

*Dictionary of units of measurement.
2015.*

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**Fifth**— may refer to: * One fifth, a quintile, or 20% of a certain amount * The fifth in a series, or four after the first * 1st Battalion 5th Marines * In the United States, the Fifth Amendment to the United States Constitution especially as in the… … Wikipedia**fifth**— /fifth/ or, often, /fith/, adj. 1. next after the fourth; being the ordinal number for five. 2. being one of five equal parts. 3. Auto. of, pertaining to, or operating at the gear transmission ratio at which the drive shaft speed is greater than… … Universalium**fifth**— [fifth] adj. [ME fifte < OE fifta < fif, FIVE] 1. preceded by four others in a series; 5th 2. designating any of the five equal parts of something n. 1. the one following the fourth 2. any of the five equal parts of something; 1/ 5 … English World dictionary**fifth**— ► ORDINAL NUMBER 1) constituting number five in a sequence; 5th. 2) (a fifth/one fifth) each of five equal parts into which something is or may be divided. 3) Music an interval spanning five consecutive notes in a diatonic scale, in particular… … English terms dictionary**Fifth**— Fifth, a. [OE. fifte, fifthe, AS. f[=i]fta. See {Five}.] 1. Next in order after the fourth; the ordinal of five. [1913 Webster] 2. Consisting of one of five equal divisions of a thing. [1913 Webster] {Fifth monarchy men} (Hist.), a fanatical sect … The Collaborative International Dictionary of English**fifth**— c.1200, fift, from O.E. fifta, from fif five (see FIVE (Cf. five)) + ta (see TH (Cf. th)). Altered 14c. by influence of fourth. Cf. O.Fris. fifta, O.S. fifto, O.N. fimmti, Du. vijfde, O.H.G … Etymology dictionary**Fifth**— Fifth, n. 1. The quotient of a unit divided by five; one of five equal parts; a fifth part. [1913 Webster] 2. (Mus.) The interval of three tones and a semitone, embracing five diatonic degrees of the scale; the dominant of any key. [1913 Webster] … The Collaborative International Dictionary of English**fifth**— fifth; fifth·ly; … English syllables**fifth|ly**— «FIHFTH lee», adverb. in the fifth place … Useful english dictionary**Fifth C**— Infobox Company company name = Fifth C company type = Incorporated company foundation = 2001 location = Bangalore, Singapore, London revenue = Confidential industry = Analytics, Business Intelligence, Knowledge Process Outsourcing products =… … Wikipedia**fifth**— n. & adj. n. 1 the position in a sequence corresponding to that of the number 5 in the sequence 1 5. 2 something occupying this position. 3 the fifth person etc. in a race or competition. 4 any of five equal parts of a thing. 5 Mus. a an interval … Useful english dictionary