cosign
- v sign jointly
- v sign and endorse (another person's signature), as for a loan
- Bobby, said Thompson, did not cosign the loan, but he was to share equally in the profits or losses.
- The Clintons agreed to cosign the mortgage and appear at the closing.
- He once flew into a rage at the powerful General Alvaro Obregn, ordered him at gunpoint to cosign a rebellious telegram, then had to retire for more than an hour to restrain .