/ Thesaurus / X Synonyms of xvi Find synonyms for: Noun1. sixteen, 16, XVI, large integerusage: the cardinal number that is the sum of fifteen and oneAdjective1. sixteen, 16, xvi, cardinal (vs. ordinal)usage: being one more than fifteenWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language