Synonyms|673Antonyms|118|Broader|13Narrower|17Related|401

67 entries under idiom topic. ×

1
give the green light(expression, endorse, prove, verify)
1
give the nod(expression, support, back, sign)
1
go along with(verb, expression, hold, help)
1
go to bat for(verb, expression, hold, help)
1
have a go
1
make a trial run(expression, check, examine, try)
1
make clear(verb, expression, show, prove)
1
play around with
1
put to the test(expression, check, examine, try)
1
put to trial
1
run a sample
1
run idea by someone(expression, check, examine, try)
1
run it up a flagpole(expression, check, examine, try)
1
see how it flies(expression, check, examine, try)
1
see how wind blows(expression, check, examine, try)
1
send up a balloon(expression, check, examine, try)
1
set seal on(expression, endorse, prove, verify)
1
sign off on(expression, support, back, sign)
1
speak in favor(verb, expression, support, favor)
1
stick up for(verb, expression, hold, help)
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APASmart Define. (2015). substantiate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/substantiate/thesaurus/synonyms
ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/substantiate/thesaurus/synonyms>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/substantiate/thesaurus/synonyms>