Definitions

1. verb

to affix one’s signature to a document in a subordinate position, especially by a witness or an attesting officer.

“The notary coresigned the contract, giving it official status.”

2. noun

the act of affixing one’s signature to a document in a subordinate position.

“The coresigning of the contract marked the official beginning of the partnership.”

3. verb

to confirm or attest to a document or statement by signature.

“The expert coresigned the report, verifying its accuracy.”