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Vocabulary Entry
eighteen
|noun • adjective
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N
noun
The cardinal number following seventeen and preceding nineteen; the number 18.
Example Sentences
"She celebrated her eighteenth birthday last week."
"Eighteen is often considered the age of adulthood in many countries."
"In Roman numerals, eighteen is represented as XVIII."
A
adjective
Relating to the number eighteen; having a value of 18.
Example Sentences
"He scored an eighteen on the quiz, which was his highest score yet."
"The team consists of eighteen members this season."
"She earned eighteen credits this semester."