Eighteenth Definition
ā-tēnth
noun
The ordinal number matching the number 18 in a series.
American Heritage
The one following the seventeenth.
Webster's New World
Any one of the eighteen equal parts of something;118
Webster's New World
The person or thing in the eighteenth position.
Wiktionary
adjective
Preceded by seventeen others in a series; 18th.
Webster's New World
Designating any of the eighteen equal parts of something.
Webster's New World
The ordinal form of the number eighteen.
Wiktionary
Synonyms:
adverb
In the eighteenth place, rank, group, etc.
Webster's New World
Other Word Forms of Eighteenth
Noun
Singular:
eighteenth
Plural:
eighteenthsEighteenth Is Also Mentioned In
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