Germany vs FRG

Germany and FRG both are nouns.

Word	Noun	Adjective	Verb	Adverb
Germany	Yes	No	No	No
FRG	Yes	No	No	No

As nouns, Germany and FRG are synonyms defined as:

Germany and FRG: a republic in central Europe; split into East Germany and West Germany after World War II and reunited in 1990

Other synonyms of Germany include Deutschland, Federal Republic of Germany.

Germany (noun)	FRG (noun)
a republic in central Europe; split into East Germany and West Germany after World War II and reunited in 1990	a republic in central Europe; split into East Germany and West Germany after World War II and reunited in 1990