perch vs United Kingdom of Great Britain and Northern Ireland

perch and United Kingdom of Great Britain and Northern Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
perch	Yes	No	Yes	No
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No

perch (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
spiny-finned freshwater food and game fishes	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom
any of numerous spiny-finned fishes of various families of the order Perciformes
support consisting of a branch or rod that serves as a resting place (especially for a bird)
any of numerous fishes of America and Europe
an elevated place serving as a seat
a linear measure of 16.5 feet
a square rod of land

perch (verb)	United Kingdom of Great Britain and Northern Ireland (verb)
sit, as on a branch
cause to perch or sit
to come to rest, settle