0 the act of saying that you approve of or support something or someone:
1 a mark on a driving licence that shows the driver is guilty of driving in an illegal way:
2 the act of making a public statement of your support for something or someone:
4 a statement made by someone in an advertisement, especially a well-known person, saying that they use and like a particular product:
The company is considering other marketing tactics like celebrity endorsement and using cartoon characters to promote products.
Artists and athletes can earn a lot of money from brands, film rights, product endorsements, and such things.
an endorsement contract/deal The young swimmer has just signed a lucrative endorsement deal with a well-known swimwear maker.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.