/ Thesaurus / E Synonyms of east sider Find synonyms for: Noun1. East-sider, New Yorkerusage: a resident of the east side of Manhattan in New York CityAdjective1. eastside, east (vs. west)usage: of the eastern part of a city e.g. Manhattan; "the eastside silk-stocking district"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language