balaclava helmet vs balaclava

balaclava helmet and balaclava both are nouns.

Word	Noun	Adjective	Verb	Adverb
balaclava helmet	Yes	No	No	No
balaclava	Yes	No	No	No

As nouns, balaclava helmet and balaclava are synonyms defined as:

balaclava helmet and balaclava: a cap that is close-fitting and woolen and covers all of the head but the face

balaclava helmet (noun)	balaclava (noun)
a cap that is close-fitting and woolen and covers all of the head but the face	a cap that is close-fitting and woolen and covers all of the head but the face