1. A signature or written statement on the back of a check, bill of exchange, or other negotiable instrument, transferring it to another person.
Usage: legal/financial term; also spelled 'endorsements'
2. A public declaration of support or approval for a person, product, or idea.
Usage: common in marketing and politics
3. A note or comment written on a document to provide additional information or authorization.
Usage: administrative/official use

Examples

• The check required the payee's indorsement before it could be deposited.
• The celebrity's indorsement of the new product boosted its sales significantly.
• The manager added indorsements to the contract to clarify the payment terms.
• Political candidates seek indorsements from influential community leaders.
• The bank official reviewed the indorsements on the back of the promissory note.
• Her indorsement of the proposal helped convince the board to approve it.