eighteen

American  

[ey-teen] / ˈeɪˈtin /

noun

1. a cardinal number, ten plus eight.

2. a symbol for this number, as 18 or XVIII.

3. a set of this many persons or things.

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adjective

1. amounting to 18 in number.

eighteen British  

/ ˈeɪˈtiːn /

noun

1. the cardinal number that is the sum of ten and eight and the product of two and nine See also number

2. a numeral, 18, XVIII, etc, representing this number

3. the amount or quantity that is eight more than ten

4. something represented by, representing, or consisting of 18 units

5. (functioning as singular or plural) a team of 18 players in Australian Rules football

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determiner

1. 1. amounting to eighteen

      eighteen weeks

   2. ( as pronoun )

      eighteen of them knew

Etymology

Origin of eighteen

before 1000; Middle English ehtetene, Old English eahtatēne; cognate with Old Norse āttjān, German achtzehn. See eight, -teen

Example Sentences

A VOA spokesperson told the BBC it had engaged with Eurotunnel and their advisers "on multiple occasions over the past eighteen months to discuss their valuation and fully explain our approach".

From BBC

“I am eighteen years old, and I live with my sister Constance. . . . Everyone else in my family is dead.”

From The Wall Street Journal

We counted eighteen French gendarmes watching them from the shore, declining to intervene.

From BBC

On the second day of the truce, Ukraine said there had been nearly 200 clashes along the front line, eighteen Russian air strikes and almost four thousand instances of shelling by Russian troops.

From BBC

Nearly eighteen months after her most recent post, Lilly is in a different headspace.

From BBC