eighteen

numeralcommon in dialogue

United Kingdom//ˈeɪ.tiːn//
United States//ˈeɪ(t).tin//

The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.

numeral

1
The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.
The right of citizens of the United States, who are eighteen years of age or older, to vote shall not be denied or abridged by the United States or by any State on account of age.

Etymology

Etymology tree Proto-Indo-European *oḱtṓw Proto-Germanic *ahtōu Proto-Indo-European *déḱm̥ Proto-Germanic *tehun Proto-Germanic *ahtōutehun Anglian Old English eahtatēne Middle English eightetene English eighteen From Middle English eightetene, eiȝtene, ehtetene, from Old English eahtatīene, eahtatēne, from Proto-Germanic *ahtōutehun. Cognate with West Frisian achttjin, Dutch achttien, German achtzehn, Danish atten. Equivalent to eight + -teen.

ehh · An expression of surprise Eiffel · A surname from French.eight · A numerical value equal to 8; the number occurring after…

eighteen · The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.

Eighteen · A surname.eighth · The ordinal form of the number eight.eighty · The cardinal number occurring after seventy-nine and before…

The neighbouring pages — Alphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.