shelling vs barrage

shelling and barrage both are nouns.

Word	Noun	Adjective	Verb	Adverb
shelling	Yes	No	No	No
barrage	Yes	No	Yes	No

As nouns, shelling and barrage are synonyms defined as:

shelling and barrage: the heavy fire of artillery to saturate an area rather than hit a specific target

Other synonyms of shelling include barrage fire, battery, bombardment.

shelling (noun)	barrage (noun)
the heavy fire of artillery to saturate an area rather than hit a specific target	the heavy fire of artillery to saturate an area rather than hit a specific target
	the rapid and continuous delivery of linguistic communication (spoken or written)

shelling (verb)	barrage (verb)
	address with continuously or persistently, as if with a barrage