Grenade launcher operator and Grenade thrower

Grenade thrower and grenade launcher operator are semantically related. In some cases you can use "Grenade thrower" instead a noun "Grenade launcher operator".

Grenade thrower noun - An infantryman equipped with grenades.

Grenade launcher operator and grenade thrower are semantically related. You can use "Grenade launcher operator" instead a noun phrase "Grenade thrower".