civil suit vs causa

civil suit and causa both are nouns.

Word	Noun	Adjective	Verb	Adverb
civil suit	Yes	No	No	No
causa	Yes	No	No	No

As nouns, causa is a hypernym of civil suit; that is, causa is a word with a broader meaning than civil suit:

civil suit: a lawsuit alleging violations of civil law by the defendant
causa: a comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy

Other hypernyms of civil suit include case, cause, lawsuit, suit.

civil suit (noun)	causa (noun)
a lawsuit alleging violations of civil law by the defendant	a comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy