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

67 entries under idiom topic. ×

7
make good(verb, expression, support, favor)
2
give a tryout(expression, check, examine, try)
2
give high sign(expression, support, back, sign)
2
stand up for(expression, support, hold, help)
1
act as a witness(verb, expression, support, maintain)
1
add fuel to fire(verb, expression, support, increase)
1
be behind(expression, approve, sanction, endorse)
1
bring to test
1
check up on(verb, expression, check, confirm)
1
cop a plea(verb, expression, support, favor)
1
cut and try
1
descend to particulars
1
do justice to(verb, expression, support, maintain)
1
enter into detail
1
give a try
1
give an affidavit(verb, expression, support, maintain)
1
give full particulars
1
give green light(expression, support, back, sign)
1
give stamp of approval(expression, support, back, sign)
1
give the go-ahead(expression, support, back, sign)
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APASmart Define. (2015). substantiate thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/substantiate/thesaurus/synonyms
ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/substantiate/thesaurus/synonyms>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/substantiate/thesaurus/synonyms>