tzar uncommon noun 1. a male monarch or emperor (especially of Russia prior to 1917) Synonymsczartsar Related words Word family Tzaratzarinatzarist Broader terms sovereign Narrower terms Alexander IAlexander IIAlexander IIIGodunovIvan IVNicholas INicholas IIPeter I WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
