blast wave vs shock wave

blast wave and shock wave both are nouns.

Word	Noun	Adjective	Verb	Adverb
blast wave	Yes	No	No	No
shock wave	Yes	No	No	No

As nouns, blast wave and shock wave are synonyms defined as:

blast wave and shock wave: a region of high pressure travelling through a gas at a high velocity

blast wave (noun)	shock wave (noun)
a region of high pressure travelling through a gas at a high velocity	a region of high pressure travelling through a gas at a high velocity