1) Suit 
n. any lawsuit, petition or prosecution.
(n) A Legal Action is the action taken by a person or legal entity against another person, persons or entities with an intention to avail legal repercussions or remedies for any loss occurred or may occur to him, by moving a lawsuit in the court of the land
Any lawsuit, judicial proceeding, or prosecution, brought to protect a right or remedy a legal violation or injustice.
[n] - a judicial proceeding brought by one party against another
action 1 action at law noun a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong