Exact Match:
- countersign
- add one's signature to after another's to attest authenticity; "You must countersign on this line of the contract"
Synonyms:
- ID card,
- John Hancock,
- OK,
- X,
- accept,
- accredit,
- affirm,
- amen,
- approve,
- assure,
- authenticate,
- authorize,
- autograph,
- avouch,
- badge,
- calligram,
- calling card,
- card,
- certify,
- christcross,
- cipher,
- confirm,
- cosign,
- countermark,
- countersignature,
- counterstamp,
- credentials,
- cross,
- device,
- dog tag,
- endorse,
- endorsement,
- give permission,
- give the go-ahead,
- give the imprimatur,
- give thumbs up,
- guarantee,
- hand,
- identification,
- identification badge,
- identification tag,
- initial,
- initials,
- letter of introduction,
- make a promise,
- mark,
- mark of signature,
- monogram,
- notarize,
- open sesame,
- pass,
- pass on,
- pass upon,
- password,
- permit,
- pledge,
- plight,
- press card,
- promise,
- ratify,
- rubber stamp,
- sanction,
- say amen to,
- seal,
- second,
- secret grip,
- serial number,
- shibboleth,
- sigil,
- sign,
- sign and seal,
- sign manual,
- signature,
- signet,
- subscribe to,
- subscription,
- support,
- swear,
- swear and affirm,
- swear to,
- tessera,
- token,
- troth,
- undersign,
- underwrite,
- validate,
- visa,
- vise,
- visiting card,
- vouch,
- vow,
- warrant,
- watchword,
- word