Letters that make USPS
s, p, u are letters that make 'USPS'
cusps is a word created by adding a letter to 'USPS'
1 possible definitions for 'USPS'
Under this definition, usps is a noun and has the following properties:
United States Postal Service, US Postal Service have the same meaning as 'USPS'
'USPS' can be a type of independent agency.
United States Postal Inspection Service, US Postal Inspection Service are parts of 'USPS'.