end user

noun

1. the ultimate user for whom a machine, as a computer, or product, as a computer program, is designed.

noun

1. 1. (in international trading) the person, organization, or nation that will be the ultimate recipient of goods, esp such as arms or advanced technology
   2. (as modifier)an end-user certificate
2. computing the ultimate destination, such as a program or operator, of information that is being transferred within a system