| Main Entry: | |
| Part of Speech: | noun |
| Definition: | cosigner |
| Synonyms: | endorser, signatory, sponsor, underwriter, witness |
| Main Entry: | subscriber |
| Part of Speech: | noun |
| Definition: | contributor |
| Synonyms: | attester, backer, benefactor, donor, endorser, patron, signer, sponsor, supporter |
| Main Entry: | undersigned |
| Part of Speech: | noun |
| Definition: | person or persons who have signed a letter or document |
| Synonyms: | endorser, petitioner, signatory, signer, subscriber |
| Main Entry: | testifier |
| Part of Speech: | noun |
| Definition: | witness |
| Synonyms: | attestant, attester, attestor, beholder, bystander, corroborator, deponent, eyewitness, gawker, looker-on, observer, onlooker, proof, rubbernecker, signatory, signer, spectator, testimony, viewer, watcher |
| Main Entry: | viewer |
| Part of Speech: | noun |
| Definition: | witness |
| Synonyms: | attestant, attestor, beholder, bystander, corroborator, deponent, eyewitness, gawker, looker-on, observer, onlooker, proof, rubbernecker, seer, signatory, signer, spectator, testifier, testimony, watcher |