opera hood vs opera cloak

opera hood and opera cloak both are nouns.

Word	Noun	Adjective	Verb	Adverb
opera hood	Yes	No	No	No
opera cloak	Yes	No	No	No

As nouns, opera hood and opera cloak are synonyms defined as:

opera hood (noun)	opera cloak (noun)
a large cloak worn over evening clothes	a large cloak worn over evening clothes