What does endorsement mean?
Endorsement is the act of publicly approving, supporting, or recommending a person, product, policy, or idea — and the formal statement in which such approval is expressed. It appears constantly in politics, where candidates seek endorsements from party leaders, newspapers, and celebrities to build credibility with voters, and in advertising, where brands pay well-known figures for endorsements that lend their products an air of trustworthiness. The word also has older technical senses: in banking, an endorsement is a signature on the back of a cheque that transfers ownership or authorizes payment, while in insurance it can denote an amendment attached to a policy. Derived from the Latin dorsum, meaning "back," the word originally described writing placed on the back of a document. Today it carries strongly positive connotations, implying confidence, legitimacy, and the persuasive weight of someone else's reputation.
The act of publicly expressing approval or support for someone or something, or the formal statement recording that approval.
"Her endorsement of the charity brought in thousands of new donors overnight."
Most common sense in contemporary usage, especially in political and commercial contexts.
A signature or inscription written on the back of a cheque, bill, or other document, typically to transfer ownership or authorize payment.
"The bank rejected the cheque because the endorsement on the back did not match the payee's name."
An amendment or clause added to an insurance policy or official document to modify its terms.
"The insurer added an endorsement to the policy covering flood damage."
Regular plural, used when referring to multiple acts of approval, several signatures, or multiple policy amendments.
"The campaign proudly displayed all of its high-profile endorsements on its website."
When a celebrity lends their name to your product, that's not just approval — it's literally writing their name on your back, because 'endorse' comes from Latin dorsum, the back.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of endorsement
Endorsement comes from the verb "endorse," which entered English in the late Middle Ages from Old French endosser, ultimately derived from Latin dorsum, meaning "back." The original sense was literal: writing a signature or note on the back of a document to authorize it, a practice central to medieval commerce and later to negotiable instruments like cheques. From this concrete act, the word extended figuratively to mean any public declaration of support or approval. A variant spelling, "indorsement," was long preferred in American legal usage.
Related word forms
How endorsement is actually used
In everyday usage, "endorsement" most often refers to public or commercial backing, and it carries a positive connotation of trust and credibility. In banking and insurance contexts (especially British legal usage), it retains the older technical sense of a signature on the back of a document or an amendment added to a policy. The spelling "indorsement" survives mainly in American legal documents.
Easily confused with endorsement
"Indorsement" is simply an older American spelling variant of "endorsement," now largely confined to legal contexts; both refer to the same thing.