Definition of USP noun from the Oxford Advanced American Dictionary

 

USP

 noun
noun
NAmE//ˌyu ɛs ˈpi//
 
(business)
 
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a feature of a product or service that makes it different from all the others that are available and is a reason for people to choose it (the abbreviation forunique selling propositionorunique selling point) You need to come up with a USP. Your USP has to tell people why they should do business with you. Their USP was that they guaranteed delivery in 30 minutes or less.
See the Oxford Advanced Learner's Dictionary entry: USP