eighteenth

ay-TEENTH/ˌeɪˈtiːnθ/

4 meanings of eighteenth

1
adjective
Coming after the seventeenth in a sequence; the ordinal form of the number eighteen.
She turned the page to the eighteenth chapter of the novel.
His office sits on the eighteenth floor of the tower.
2
nouncountable
The person or thing occupying position number eighteen in a sequence.
Among the candidates interviewed, he was the eighteenth that day.
Counting from the front entrance, this house is the eighteenth on the street.
3
nouncountable
Any one of eighteen equal parts into which a whole is divided.
Each investor was entitled to an eighteenth of the company's annual profits.
The recipe calls for an eighteenth of a teaspoon of the rare spice.
4
nouncolloquialcountable
A celebration party marking a person's eighteenth birthday.
She rented a hall by the river for her eighteenth.
Half the school showed up to his eighteenth on Saturday.

Practice

Can you tell the meanings of eighteenth apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

This comes from Middle English "eiȝtenþe", from Old English "eahtatēoþa", going back to Proto-Germanic. It is simply "eighteen" plus the ordinal suffix "-th".