countersign
/ˈkaʊntərˌsaɪn/
verb
- To sign a document that has already been signed by someone else, in order to confirm its validity.
- Please countersign the check to authorize the payment.
- The manager needs to countersign the contract before it becomes official.
- Both parents must countersign the permission slip for the field trip.
noun
- A secret signal or password used to confirm identity, especially in military or security contexts.
- The spy whispered the countersign to gain entry to the safe house.
- They agreed on a countersign to recognize each other in the dark.
- The guard asked for the countersign before allowing the soldier through the gate.
Synonyms