/ Thesaurus / N Synonyms of nicholas i Find synonyms for: Noun1. Nicholas I, Czar Nicholas Iusage: czar of Russia from 1825 to 1855 who led Russia into the Crimean War (1796-1855)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language