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Synonyms

fourth

American  
[fawrth, fohrth] / fɔrθ, foʊrθ /

adjective

  1. next after the third; being the ordinal number for four.

  2. being one of four equal parts.

  3. Automotive. of, relating to, or operating at the gear transmission ratio at which the drive shaft speed is greater than that of third gear for a given engine crankshaft speed, but not so great as that of fifth gear, if such exists.

    fourth gear.


noun

  1. a fourth part, especially of one (¼).

  2. the fourth member of a series.

  3. Music.

    1. a tone on the fourth degree from a given tone (counted as the first).

    2. the interval between such tones.

    3. the harmonic combination of such tones.

  4. Automotive. fourth gear.

    She downshifted from fifth to fourth as we started up the hill.

  5. the Fourth. Independence Day; the Fourth of July.

adverb

  1. in the fourth place; fourthly.

fourth British  
/ fɔːθ /

adjective

    1. coming after the third in order, position, time, etc. Often written: 4th

    2. ( as noun )

      the fourth in succession

  1. denoting the fourth forward ratio of a gearbox in motor vehicles

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. music

    1. the interval between one note and another four notes away from it counting inclusively along the diatonic scale

    2. one of two notes constituting such an interval in relation to the other See also perfect interval diminished

  2. the fourth forward ratio of a gearbox in a motor vehicle

    he changed into fourth as soon as he had passed me

  3. a less common word for quarter

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. after the third person, position, event, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
  1. as the fourth point: linking what follows with the previous statements, as in a speech or argument

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of fourth

First recorded before 950; Middle English fourthe, Old English fēowertha; four, -th 2

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.

A "real one-off" photograph which inspired the album cover of Led Zeppelin's fourth album has sold for £16,000 after a transatlantic bidding war.

From BBC

It noted in the concluding statement of its "Article IV" consultation that the country saw "continued strong productivity growth even though the government shutdown took a bite out of activity in the fourth quarter."

From Barron's

For the fourth fiscal quarter, ending in April, management expects revenue in the range of $48 million to $52 million, and continues to see operating losses.

From Barron's

Paramount Skydance is betting its future on its streaming business, as gains at the media and entertainment company’s Paramount+ platform helped boost earnings for the fiscal fourth quarter of 2025.

From Los Angeles Times

Edwin Díaz pitched the fourth inning, giving up one hit and striking out one.

From Los Angeles Times