Eighth Definition

ātth, āth
noun
The ordinal number matching the number eight in a series.
American Heritage
The one following the seventh.
Webster's New World
Any of the eight equal parts of something;18
Webster's New World
Webster's New World
(slang) An "eighth" of an ounce equalling approximately 3.5 grams in marijuana or other drugs.
Wiktionary
Synonyms:
adjective
Preceded by seven others in a series; 8th.
Webster's New World
Designating any of the eight equal parts of something.
Webster's New World

The ordinal form of the number eight.

Wiktionary
Synonyms:
adverb
In the eighth place, rank, group, etc.
Webster's New World
abbreviation

8th, 8th; (in names of monarchs and popes) VIII.

Wiktionary

Other Word Forms of Eighth

Noun

Singular:
eighth
Plural:
eighths

Origin of Eighth

  • Middle English eighthe from Old English eahtotha from eahta eight oktō(u) in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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