Lebanese Republic vs Lebanon

Lebanese Republic and Lebanon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lebanese Republic	Yes	No	No	No
Lebanon	Yes	No	No	No

As nouns, Lebanese Republic and Lebanon are synonyms defined as:

Lebanese Republic and Lebanon: an Asian republic at east end of Mediterranean

Lebanese Republic (noun)	Lebanon (noun)
an Asian republic at east end of Mediterranean	an Asian republic at east end of Mediterranean