138 entries under sign topic. ×

3
stamp(noun, show, mark, light)
3
substantiation(noun, information, mark, reason)
3
token(noun, verb, state, show, information)
3
vouch for(verb, expression, phrasal verb, support, show)
2
announce(verb, state, make, mean, show)
2
approve(verb, support, state, praise, favor)
2
autograph(verb, confirm, endorse)
2
averment(noun, information, mark, reason)
2
back(verb, support, show, maintain, determine)
2
bear out(verb, expression, phrasal verb, support, show)
2
bless(verb, support, praise, favor, back)
2
circumstantiate(verb, support, back, uphold)
2
debunk(verb, support, back, uphold)
2
documentation(noun, information, mark, note)
2
flash(noun, verb, mark, light, consider)
2
give green light(expression, idiom, support, praise, favor)
2
give high sign(expression, idiom, support, back)
2
give the go-ahead(expression, idiom, support, praise, favor)
2
give the nod(expression, idiom, support, praise, favor)
2
index(noun, show, information, mark, light)
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APASmart Define. (2015). witness thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/witness/thesaurus/synonyms
ChicagoSmart Define. 2015. "witness thesaurus" https://smartdefine.org/witness/thesaurus/synonyms (accessed October 2, 2026).
HarvardSmart Define 2015, witness thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/witness/thesaurus/synonyms>.
MLASmart Define. "witness thesaurus" 23 December 2015. Web. 2 October 2026. <https://smartdefine.org/witness/thesaurus/synonyms>