lounging jacket vs smoking jacket

lounging jacket and smoking jacket both are nouns.

Word	Noun	Adjective	Verb	Adverb
lounging jacket	Yes	No	No	No
smoking jacket	Yes	No	No	No

As nouns, lounging jacket and smoking jacket are synonyms defined as:

lounging jacket and smoking jacket: a man's soft jacket usually with a tie belt; worn at home

lounging jacket (noun)	smoking jacket (noun)
a man's soft jacket usually with a tie belt; worn at home	a man's soft jacket usually with a tie belt; worn at home