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Synonyms for back up

Synonyms (Grouped by Similarity of Meaning) of verb back_up

Sense 1:

support, back up

Sense 2:

back up, back off, back down
withdraw, retreat, pull away, draw back, recede, pull back, retire, move back

Sense 3:

back, back up
confirm, corroborate, sustain, substantiate, support, affirm

Sense 4:

back up
copy, re-create

Sense 5:

clog, choke off, clog up, back up, congest, choke, foul
obstruct, obturate, impede, occlude, jam, block, close up