Ballista and Carbine

Ballista noun - An engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles.

Carbine and ballista are semantically related. In some cases you can use "Carbine" instead a noun "Ballista".

Carbine noun - Light automatic rifle.

Ballista and carbine are semantically related. Sometimes you can use "Ballista" instead a noun "Carbine".