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.

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

   2. ( as noun )

      the fourth in succession

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

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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

adverb

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

1. as the fourth point: linking what follows with the previous statements, as in a speech or argument

Etymology

Origin of fourth

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

Example Sentences

Rosary ran 45.57 last spring — the fourth fastest time in meet history — anchored by Wilson.

From Los Angeles Times • Apr. 12, 2026

That helped Lowry finish the day at 9-under and in fourth place heading into Sunday’s final round, two shots behind McIlroy and American Cameron Young, the co-leaders.

From The Wall Street Journal • Apr. 12, 2026

Sam Burns, another American, is one shot off the lead, while McIlroy's close friend Shane Lowry is fourth on nine under after a four-under 68.

From BBC • Apr. 11, 2026

Patrick is up for reelection himself, seeking a fourth four-year term.

From Salon • Apr. 11, 2026

In the fourth generation, the hunt begins—and ends.

From "The Long-Lost Home" by Maryrose Wood

Related Words

• one-fourth
• part
• portion
• term