Adjective modifier

• heavy: Private Morrow worked on entirely on his own initiative, all the time being under extremely heavy shellfire from the German guns.

• German: The impact of German shellfire in the action here tends to be understated, in my view.

Converse of subject

• destroy: However, there were still many whose graves were destroyed by shellfire over the course of the war.

• kill: In many cases, it may not have been possible to identify them if they had been killed by shellfire.

• wound: Off the coast of that country, he was wounded by shellfire.

• hit: We found ourselves at Albert where the Madonna, having been hit by shellfire, hung down from the top of a church.