Entity

(n.) A real being, whether in thought (as an ideal conception) or in fact; being; essence; existence.

Thesaurus Entries

an existence, article, being, body, creature, critter, ens, entelechy, esse, essence, existence, existent, individual, integer, integral, integrate, item, life, material, materiality, matter, module, monad, object, occurrence, organism, person, persona, personality, point, presence, quantity, quiddity, quintessence, single, singleton, something, soul, stuff, subsistence, substance, substantiality, sum, system, thing, totality, unit