The cardinal number that is the sum of seventeen and one
(Noun)
Synonyms:
  1. eighteen
  2. 18
Being one more than seventeen
(Adjective)
Synonyms:
  1. eighteen
  2. 18

Words Related to Xviii

Related words are words that are directly connected to each other through their meaning, even if they are not synonyms or antonyms. This connection may be general or specific, or the words may appear frequently together.

Words near Xviii in the Thesaurus