/ Thesaurus / D Synonyms of do by Find synonyms for: Verb1. treat, handle, do by, interactusage: interact in a certain way; "Do right by her"; "Treat him with caution, please"; "Handle the press reporters gently"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language