Chateau-Thierry vs Second Battle of the Marne

Chateau-Thierry and Second Battle of the Marne both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chateau-Thierry	Yes	No	No	No
Second Battle of the Marne	Yes	No	No	No

As nouns, Chateau-Thierry and Second Battle of the Marne are synonyms defined as:

Chateau-Thierry and Second Battle of the Marne: a World War I battle in northwestern France where the Allies defeated the Germans in 1918

Other synonyms of Chateau-Thierry include Battle of the Marne, Belleau Wood, Marne River.

Chateau-Thierry (noun)	Second Battle of the Marne (noun)
a World War I battle in northwestern France where the Allies defeated the Germans in 1918	a World War I battle in northwestern France where the Allies defeated the Germans in 1918