a body: the physical frame of a person or creature, whether still living or lying dead
Hebrew uses this one word for a body seen as a whole physical thing, and it does not care whether that body is alive. The same noun names the bodies starving Egyptians offer to Pharaoh when they have nothing else left, the bodies of the winged creatures in Ezekiel's vision, and the body of Saul fastened to a city wall. English has to keep swapping words to follow it ("body", "corpse", "carcass"), which makes the Hebrew look far more varied than it is.
What holds the uses together is that the word points at the frame itself: the thing you could see, carry, or nail to a wall. It is not naming the life inside the body, and it is not naming the material the body is made of, which is the job of "flesh" (בָּשָׂר). Nor is it one of the words that can only ever mean something dead (פֶּגֶר, נְבֵלָה). Because it points at the frame, it can also narrow to the trunk alone: in the visions of Ezekiel and Daniel it stands in a list beside faces, wings, eyes, arms, and feet, so it means the main body those parts belong to.
That plainness gives the word its most human use. When everything else has been sold or seized, a person's body is what is left, and Hebrew says so without softening it: the Egyptians offer Pharaoh their bodies and their land, and the returned exiles complain that foreign kings rule over their bodies. And when a body is all that is left in the other sense, the word does not flinch either. It names the lion's remains under the honeycomb and the heaps of the dead after a battle in exactly the same breath it used for the living.