is a specific kind of: physical entity.

is a broader term that covers: unit, whole | location | charm, good luck charm | curio, curiosity, oddity, oddment, peculiarity, rarity | draw, lot | film | hoodoo | je ne sais quoi | keepsake, relic, souvenir, token | filler, makeweight | part, portion | prop, property | snake | stuff | small beer, trifle, trivia, triviality | paring | catch | commemorative | discard | finding | floater | fomite, vehicle | formation, geological formation | growth | hail | head | ice | dry land, earth, ground, land, solid ground, terra firma | ground, land, soil | moon | neighbor, neighbour | remains | ribbon, thread | shiner | vagabond | wall | web ... show more.

derivation: exteriorise, exteriorize, externalise, externalize, objectify.