third

American  

[thurd] / θɜrd /

adjective

1. next after the second; being the ordinal number for three.

2. being one of three 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 second gear for a given engine crankshaft speed, but not as great as that of fourth gear, if such exists.

   third gear.

4. rated, graded, or ranked one level below the second.

   He's third engineer on the ship.

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noun

thirds plural

1. a third part, especially of one (1/3).

2. the third member of a series.

3. Automotive. third gear.

   Don't try to start a car when it's in third.

4. a person or thing next after second in rank, precedence, order.

   The writer of the best essay will receive a gold medal, the second a silver, and the third a bronze.

5. Law. Usually thirds

   1. the third part of the personal property of a deceased husband, which in certain circumstances goes absolutely to the widow.

   2. a widow's dower.

6. Music.

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

   2. the interval between such tones.

   3. the harmonic combination of such tones.

7. Baseball. third base.

8. Commerce. Usually thirds. a product or goods below second quality.

adverb

1. in the third place; thirdly.

third British  

/ θɜːd /

adjective

1. 1. coming after the second and preceding the fourth in numbering or counting order, position, time, etc; being the ordinal number of three: often written 3rd

   2. ( as noun )

      he arrives on the third

      the third got a prize

2. rated, graded, or ranked below the second level

3. denoting the third from lowest forward ratio of a gearbox in a motor vehicle

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noun

1. 1. one of three equal or nearly equal parts of an object, quantity, etc

   2. ( as modifier )

      a third part

2. the fraction equal to one divided by three ( 1/ 3 )

3. the forward ratio above second of a gearbox in a motor vehicle. In some vehicles it is the top gear

4. 1. the interval between one note and another three 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 interval major minor

5. Full term: third class honours degree.  an honours degree of the third and usually the lowest class

6. (plural) goods of a standard lower than that of seconds

adverb

1. Also: thirdly.  in the third place

1. Also: thirdly.  as the third point: linking what follows with the previous statements as in a speech or argument

Other Word Forms

Derived Forms

• thirdly
  adverb

Inflected Forms

Nouns

• thirds
  plural

Etymology

Origin of third

before 900; Middle English thirde, Old English (north) thirda, variant of thridda; cognate with Dutch derde, German dritte, Old Norse thrithi, Gothic thridja, Greek trítos, Latin tertius, Sanskrit tṛtīya. See three

Example Sentences

Student Kaneesha Kumar, 22, was walking her thick-coated dog Chance along Manhattan's Third Avenue where the mercury reached 93 Fahrenheit.

From Barron's • Jul. 2, 2026

Third, arguments that Chatrie and Carpenter lacked “support in 19th- or 20th-century understandings of the Fourth Amendment” only garnered a minority of justices’ votes.

From Slate • Jul. 1, 2026

Then White called his Third Man Records co-founder, “Minister Ben Swank,” onstage to perform the nuptials, and the pair said their “I do’s” to thunderous applause from the crowd.

From Los Angeles Times • Jun. 24, 2026

"Third country" nationals - including UK citizens - must provide fingerprints and a photo at passport control.

From BBC • Jun. 24, 2026

Third, experimentation involves both a study of the external world and a capacity to generalize.

From "The Invention of Science" by David Wootton