Fortieth Definition

fôrtē-ĭth
noun
The one following the thirty-ninth.
Webster's New World
The ordinal number matching the number 40 in a series.
American Heritage
Any of the forty equal parts of something;140
Webster's New World
The person or thing in the fortieth position.
Wiktionary
adjective
Preceded by thirty-nine others in a series; 40th.
Webster's New World
Designating any of the forty equal parts of something.
Webster's New World

The ordinal form of the number forty.

Wiktionary
Synonyms:
  • 40th
adverb
In the fortieth place, rank, group, etc.
Webster's New World

Other Word Forms of Fortieth

Noun

Singular:
fortieth
Plural:
fortieths

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fortieth