endorsement

noun

1. approval or sanction: The program for supporting the arts won the government’s endorsement.
2. the placing of one’s signature, instructions, etc., on a document.
3. the signature, instructions, etc., placed on the reverse of a commercial document, for the purpose of assigning the interest therein to another.
4. a clause under which the stated coverage of an insurance policy may be altered.

noun

1. the act or an instance of endorsing
2. something that endorses, such as a signature or qualifying comment
3. approval or support
4. a record of a motoring offence on a driving licence
5. insurance a clause in or amendment to an insurance policy allowing for alteration of coverage