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

But Hill also predicted a sales decline of 2% to 4% for the fiscal fourth quarter, which ends on May 31.

From MarketWatch

Celtic's Anthony Ralston got a few minutes late on against Japan, but is fourth choice when everyone in his position is fit at Parkhead.

From BBC

A key gauge of business sentiment in Japan improved for a fourth straight quarter.

From The Wall Street Journal

Apollo Go completed 3.4 million driverless rides in the fourth quarter last year, with total rides more than tripling from the prior-year period.

From The Wall Street Journal

In the fourth quarter of 2025, Apollo Go delivered 3.4 million driverless rides, with total rides increasing over 200 percent compared to the same period a year prior, according to company filings.

From Barron's

Related Words

• one-fourth
• part
• portion
• term