OR vs America

OR and America both are nouns.

Word	Noun	Adjective	Verb	Adverb
OR	Yes	No	No	No
America	Yes	No	No	No

OR (noun)	America (noun)
a room in a hospital equipped for the performance of surgical operations	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
a state in northwestern United States on the Pacific with capital Salem	North America and South America and Central America