Nikolai Lenin ni·ko·lai·lenin uncommon noun 1. Russian founder of the Bolsheviks and leader of the Russian Revolution and first head of the USSR (1870-1924) SynonymsLeninVladimir LeninNikolai LeninVladimir Ilyich LeninVladimir Ilich LeninVladimir Ilyich UlyanovVladimir Ilich Ulyanov Related words Broader terms Bolshevik WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.