1. publicly supported or approved of someone or something
Usage: past tense and past participle of endorse
2. signed the back of a check to make it payable
Usage: financial context

Examples

• The senator endorsed the new healthcare bill.
• Several celebrities endorsed the candidate for mayor.
• The company endorsed the safety measures proposed by the committee.
• She endorsed the check before depositing it at the bank.
• The organization endorsed stricter environmental regulations.
• He endorsed his paycheck and handed it to the teller.
• The newspaper endorsed the incumbent governor for reelection.