fifth
Americanadjective
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next after the fourth; being the ordinal number for five.
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being one of five equal parts.
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Automotive. of, relating to, or operating at the gear transmission ratio at which the drive shaft speed is greater than that of fourth gear for a given engine crankshaft speed.
fifth gear.
adverb
noun
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a fifth part, especially of one (1/5).
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the fifth member of a series.
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a fifth part of a gallon of liquor or spirits; 4/5 (0.8) of a quart (about 750 milliliters).
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Automotive. fifth gear.
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Music.
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a tone on the fifth degree from another tone (counted as the first).
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the interval between such tones.
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the harmonic combination of such tones.
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idioms
adjective
noun
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one of five equal or nearly equal parts of an object, quantity, measurement, etc
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( as modifier )
a fifth part
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the fraction equal to one divided by five ( 1/ 5 )
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music
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the interval between one note and another five notes away from it counting inclusively along the diatonic scale
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one of two notes constituting such an interval in relation to the other See also perfect diminished interval
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an additional high gear fitted to some motor vehicles
adverb
Etymology
Origin of fifth
First recorded before 1000; earlier fift, Middle English fifte, Old English fīfta; -th by analogy with fourth, etc.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The fifth seed took a medical timeout for treatment on his thigh but, unable to serve or move properly, he walked to the net and shook hands at 3-1 down in the third.
From BBC
The 26-year-old fifth seed took her latest victory in her stride, saying a calmer mindset helped in the heat of battle.
From Barron's
The Trojans will assuredly have to win at least one of those games to maintain their hopes of making the College Football Playoff in Riley’s fifth season.
From Los Angeles Times
According to Bespoke Investment Group, Tuesday’s drop for UnitedHealth is the fifth time the stock has fallen at least 10% in a day in the past year.
From Barron's
The former Colorado quarterback was considered a potential high first-round pick going into the 2025 draft, but he slipped down to the fifth round, where he was selected by Cleveland at No. 144 overall.
From Los Angeles Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.