physical entity vs entity

physical entity and entity both are nouns.

Word	Noun	Adjective	Verb	Adverb
physical entity	Yes	No	No	No
entity	Yes	No	No	No

As nouns, entity is a hypernym of physical entity; that is, entity is a word with a broader meaning than physical entity:

physical entity: an entity that has physical existence
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity (noun)	entity (noun)
an entity that has physical existence	that which is perceived or known or inferred to have its own distinct existence (living or nonliving)