Leon, original name Lev Davidovich Bronstein. 1879--1940, Russian revolutionary and Communist theorist. He was a leader of the November Revolution (1917) and, as commissar of foreign affairs and war (1917--24), largely created the Red Army. He was ousted by Stalin after Lenin's death and deported from Russia (1929); assassinated by a Stalinist agent
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a gadget; dingus; thingumbob.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.