the account of its essence, but in a sense there are many, since the thing itself and the thing itself with an attribute are in a sense the same, e.g. Socrates and musical Socrates (a false account is not the account of anything, except in a qualified sense).
adibidez, "Sokrates" eta "Sokrates musikaria" (definizio faltsua ez baita inondik inora ezeren definizioa).