Meaning

noun a professional killer who uses a gun

noun a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the U

noun an explosive device that is set off in an oil well (or a gas well) to start or to increase the flow of oil (or gas)

origin* Borrowed from Latin torpēdō (“a torpedo fish; numbness, torpidity, electric ray”), from torpeō (“to be stiff, numb, torpid; to be astounded; to be inactive”) + -ēdō (noun suffix), from Proto-Indo-European *ster- (“stiff”). In the military sense coined by Robert Fulton in 1805. Cognate with Old English steorfan (“to die”), Ancient Greek στερεός (stereós, “solid”), Lithuanian tirpstu (“to become…

Etymology from Wiktionary, CC BY-SA 3.0