/ Thesaurus / B Synonyms of backed up Find synonyms for: Verb1. support, back upusage: give moral or psychological support, aid, or courage to; "She supported him during the illness"; "Her children always backed her up"2. back up, back off, back down, withdraw, retreat, pull away, draw back, recede, pull back, retire, move backusage: move backwards from a certain position; "The bully had to back down"3. back, back up, confirm, corroborate, sustain, substantiate, support, affirmusage: establish as valid or genuine; "Can you back up your claims?"4. back up, copy, re-createusage: make a copy of (a computer file) especially for storage in another place as a security copy; "You'd better back up these files!"5. clog, choke off, clog up, back up, congest, choke, foul, obstruct, obturate, impede, occlude, jam, block, close upusage: become or cause to become obstructed; "The leaves clog our drains in the Fall"; "The water pipe is backed up"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: jugular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language