Definition of Entity
A real being; existence. An organization or being that possesses separate existence for tax purposes. Examples would be corporations, partnerships, estates and trusts. The accounting entity for which accounting statements are prepared may not be the same as the entity defined by law.
An existence apart, such as a corporation in relation to its stockholders.
Entity includes person, estate, trust, governmental unit Bankruptcy Act, § 101(14).
See also Legal entity.
That's the definition of Entity in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.