The term “entity” describes a non-specific being with an independent existence and personality. In other words, a conscious thing with a self-contained existence.
When we use the term entity in metaphysical circles, we are generally speaking of non-corporeal, ethereal or cryptozoological beings that we may or may not have specific names for but it may well refer more ordinary material beings as well. In mundane legal language, an entity can also refer to businesses and organizations as well.