 fourth |
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| 1. | [ adjective ] (geology) coming next after the third and just before the fifth in position or time or degree or magnitude | |
| Synonyms: | 4th quaternary | |
| Examples: | "the quaternary period of geologic time extends from the end of the tertiary period to the present" |
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| Related terms: | ordinal | |
| 2. | [ adverb ] in the fourth place | |
| Synonyms: | fourthly | |
| Examples: | "fourthly, you must pay the rent on the first of the month" |
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| 3. | [ noun ] following the third position; number four in a countable series | |
| Related terms: | rank | |
| 4. | [ noun ] (mathematics) one of four equal parts | |
| Synonyms: | quarter one-fourth twenty-five_percent quartern fourth_part | |
| Examples: | "a quarter of a pound" |
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| Related terms: | common_fraction quarter | |
| 5. | [ noun ] (music) the musical interval between one note and another four notes away from it | |
| Related terms: | interval | |
| Similar spelling: |
forth fort Foret Ford forehead forty Forti forte Forde Foard forrad |
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