endorsement

US /ɪnˈdɔːrs.mənt/
UK /ɪnˈdɔːrs.mənt/
"endorsement" picture
1.

the act of giving one's public approval or support to someone or something

:
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The product received a strong endorsement from a celebrity.
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His political campaign gained momentum after the senator's endorsement.
:
approvalsupportbackingsanctionauthorization
2.

a clause in an insurance policy or other document adding or altering its provisions

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The insurance policy included an endorsement for flood damage.
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You need to add an endorsement to your driver's license for motorcycles.
:
rideraddendumamendmentappendix
:
endorse