/ Thesaurus / W Synonyms of william sydney porter Find synonyms for: Noun1. Porter, William Sydney Porter, O. Henryusage: United States writer of short stories whose pen name was O. Henry (1862-1910)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language