ouster vs legal ouster

ouster and legal ouster both are nouns.

Word	Noun	Adjective	Verb	Adverb
ouster	Yes	No	No	No
legal ouster	Yes	No	No	No

As nouns, legal ouster is a hypernym of ouster; that is, legal ouster is a word with a broader meaning than ouster:

ouster: a wrongful dispossession
legal ouster: the expulsion of someone (such as a tenant) from the possession of land by process of law

Other hypernyms of ouster include dispossession, eviction.

ouster (noun)	legal ouster (noun)
the act of ejecting someone or forcing them out	the expulsion of someone (such as a tenant) from the possession of land by process of law
a wrongful dispossession
a person who ousts or supplants someone else