Belgique vs Belgium

Belgique and Belgium both are nouns.

Word	Noun	Adjective	Verb	Adverb
Belgique	Yes	No	No	No
Belgium	Yes	No	No	No

As nouns, Belgique and Belgium are synonyms defined as:

Belgique and Belgium: a monarchy in northwestern Europe; headquarters for the European Union and for the North Atlantic Treaty Organization

Other synonyms of Belgique include Kingdom of Belgium.

Belgique (noun)	Belgium (noun)
a monarchy in northwestern Europe; headquarters for the European Union and for the North Atlantic Treaty Organization	a monarchy in northwestern Europe; headquarters for the European Union and for the North Atlantic Treaty Organization