6
rearwards
6
retract(verb, drop, close, decline, reduce)
6
retrocede(verb, move, drop, close, go)
6
reverse side(expression, idiom, converse)
6
run(verb, move, action, act, go)
6
transfer(verb, support, move, action, upset)
6
venture(verb, set, game, speculate, risk)
6
vertebral column(noun, expression, idiom, bone, backbone)
5
aback(adjective, adverb, end, round, backward)
5
about(adverb, direction)
5
aftermost(noun, adjective, last, dorsal)
5
angel(verb, support, keep, maintain, promote)
5
binding
5
book
5
bottom(noun, adjective, turn, contrary, stern)
5
carry(verb, support, move, hold, take)
5
change(verb, move, act, movement, trip)
5
commend(verb, support, accept, praise, favor)
5
get behind(verb, expression, phrasal verb, support, hold)
5
hold(noun, verb, help, establish, block)
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APASmart Define. (2016). back thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/back/thesaurus/synonyms
ChicagoSmart Define. 2016. "back thesaurus" https://smartdefine.org/back/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, back thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/back/thesaurus/synonyms>.
MLASmart Define. "back thesaurus" 1 April 2016. Web. 20 September 2026. <https://smartdefine.org/back/thesaurus/synonyms>