/ Thesaurus / R Synonyms of robert jemison van de graaff Find synonyms for: Noun1. Van de Graaff, Robert Van de Graaff, Robert Jemison Van de Graaffusage: United States physicist (1901-1967)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language