discount rate vs USA

discount rate and USA both are nouns.

Word	Noun	Adjective	Verb	Adverb
discount rate	Yes	No	No	No
USA	Yes	No	No	No

discount rate (noun)	USA (noun)
interest on an annual basis deducted in advance on a loan	the army of the United States of America; the agency that organizes and trains soldiers for land warfare
the rate of interest set by the Federal Reserve that member banks are charged when they borrow money through the Federal Reserve System	North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776