Eighteen meaning

ā-tēn
The cardinal number equal to 17 + 1.
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The 18th in a set or sequence.
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Totaling eight more than ten.
adjective
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The cardinal number between seventeen and nineteen; 18; XVIII.
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Origin of eighteen

  • Middle English eightetene from Old English eahtatēne oktō(u) in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English ehtetene, from Old English eahtatīene, eahtatēne, from Proto-Germanic *ahtōutehun. Compare West Frisian achttjin, Dutch achttien, German achtzehn, Danish atten.

    From Wiktionary