5
stand by(verb, expression, phrasal verb, support, maintain)
5
stay
5
substantiate(verb, support, help, encourage, aid)
5
sustain(verb, support, increase, develop, maintain)
5
validate(verb, support, approve, sanction, prove)
5
verify(verb, support, help, aid, defend)
4
affirm(verb, praise, approve, confirm, authorize)
4
backtrack(verb, upset, turn, withdraw, back)
4
choke
4
choke off
4
clog up
4
congest
4
fall back(verb, expression, phrasal verb, move, withdraw)
4
prove(verb, support, verify, substantiate, validate)
4
retreat(verb, move, upset, turn, withdraw)
4
reverse(verb, turn, withdraw, return, retreat)
4
stand behind(verb, expression, phrasal verb, support, help)
4
stiffen(verb, support, increase, sustain, uphold)
4
warrant(verb, support, maintain, praise, favor)
4
withdraw(verb, move, return, retreat, reverse)
11 years ago|7.2k views|share |citing 
APASmart Define. (2015). back up thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/back_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "back up thesaurus" https://smartdefine.org/back_up/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, back up thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/back_up/thesaurus/synonyms>.
MLASmart Define. "back up thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/back_up/thesaurus/synonyms>