51 entries under sign topic. ×

12
watchword(noun, verb, endorse, witness)
10
confirm(verb, state, show, approve)
9
affirm(verb, state, show, approve)
9
certify(verb, state, show, approve)
8
endorse(verb, secure, back, approve)
7
witness(verb, state, show, approve)
6
authorize(verb, approve, authorize, sanction)
6
signature(noun, verb, endorse, witness)
5
authenticate(verb, state, show, approve)
5
corroborate(verb, state, show, confirm)
5
cosign(security, rubber-stamp, undersign)
4
autograph(verb, rubber-stamp, undersign)
4
notarize(verb, authorize, endorse, witness)
2
attest(verb, state, show, approve)
2
bear out(verb, expression, phrasal verb, show)
2
initials(verb, secure, approve, insure)
2
undersign
1
announce(verb, state, show, confirm)
1
argue(verb, state, show, confirm)
1
bear witness(verb, expression, state, show)
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APASmart Define. (2015). countersign thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/countersign/thesaurus/synonyms
ChicagoSmart Define. 2015. "countersign thesaurus" https://smartdefine.org/countersign/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, countersign thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/countersign/thesaurus/synonyms>.
MLASmart Define. "countersign thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/countersign/thesaurus/synonyms>