countersign

noun 0.900

signer

noun 0.639

cosign

noun 0.630

signee

noun 0.624

cosigner

noun 0.624

signatory

noun 0.621

undersigned

noun 0.621

signature

noun 0.603

countermark

noun 0.600

signing

noun 0.578

signature authority

noun 0.578

digital signature

noun 0.573

counterfoil

noun 0.569

countersink

noun 0.554

counterparty

noun 0.550

code signing

noun 0.550

counterterm

noun 0.544

counterspy

noun 0.542

counterpart

noun 0.539

sign on

noun 0.534

countersuit

noun 0.531

e-signature

noun 0.529

cosurety

noun 0.528

countersubversive

noun 0.522

countergift

noun 0.520

countershaft

noun 0.520

countercheck

noun 0.516

endorsement

noun 0.514

endorse

noun 0.514

endorser

noun 0.511

nonsignatory

noun 0.511

counterfort

noun 0.507

countermand

noun 0.504

autograph

noun 0.503

sign manual

noun 0.503