actual possession vs ownership

actual possession and ownership both are nouns.

Word	Noun	Adjective	Verb	Adverb
actual possession	Yes	No	No	No
ownership	Yes	No	No	No

As nouns, ownership is a hypernym of actual possession; that is, ownership is a word with a broader meaning than actual possession:

actual possession: (law) immediate and direct physical control over property
ownership: the act of having and controlling property

Other hypernyms of actual possession include possession.

actual possession (noun)	ownership (noun)
(law) immediate and direct physical control over property	the act of having and controlling property
	the relation of an owner to the thing possessed; possession with the right to transfer possession to others
	the state or fact of being an owner