side curtain airbag vs curtain airbag

side curtain airbag and curtain airbag both are nouns.

Word	Noun	Adjective	Verb	Adverb
side curtain airbag	Yes	No	No	No
curtain airbag	Yes	No	No	No

As nouns, side curtain airbag and curtain airbag are synonyms defined as:

side curtain airbag and curtain airbag: a safety device installed in cars that deploys by rapidly inflating to protect the head and provide rollover protection.

side curtain airbag (noun)	curtain airbag (noun)
a safety device installed in cars that deploys by rapidly inflating to protect the head and provide rollover protection.	a safety device installed in cars that deploys by rapidly inflating to protect the head and provide rollover protection.