burster vs explosive charge

burster and explosive charge both are nouns.

Word	Noun	Adjective	Verb	Adverb
burster	Yes	No	No	No
explosive charge	Yes	No	No	No

As nouns, burster and explosive charge are synonyms defined as:

burster and explosive charge: a quantity of explosive to be set off at one time

Other synonyms of burster include bursting charge, charge.

burster (noun)	explosive charge (noun)
a quantity of explosive to be set off at one time	a quantity of explosive to be set off at one time