eighteen

Reading level: hard

Estimated CEFR level: B1 — Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun the cardinal number that is the sum of seventeen and one
  2. adjective being one more than seventeen

Etymology

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

In classic literature

Synonyms

18, XVIII

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