12
password(noun, verb, endorse, entry)
12
sign(noun, verb, secure, back, confirm)
12
watchword(noun, verb, sign, endorse, witness)
10
confirm(verb, state, show, sign, approve)
10
word(noun, password)
9
affirm(verb, state, show, sign, approve)
9
certify(verb, state, show, sign, approve)
8
endorse(verb, secure, back, sign, approve)
8
ratify(verb, state, show, approve, confirm)
8
warrant(noun, verb, state, show, approve)
7
approve(verb, secure, back, authorize, sanction)
7
indorse(evidence, security, assent)
7
validate(verb, approve, authorize, sanction, recommend)
7
witness(verb, state, show, sign, approve)
6
authorize(verb, sign, approve, authorize, sanction)
6
countersignature
6
guarantee(verb, secure, back, approve, sanction)
6
parole
6
signature(noun, verb, sign, endorse, witness)
6
underwrite(verb, back, approve, sanction, endorse)
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APASmart Define. (2015). countersign thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/countersign/thesaurus/synonyms
ChicagoSmart Define. 2015. "countersign thesaurus" https://smartdefine.org/countersign/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, countersign thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/countersign/thesaurus/synonyms>.
MLASmart Define. "countersign thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/countersign/thesaurus/synonyms>