What is the defition of appeal?

1. an earnest request for aid, support, sympathy, mercy, etc.; entreaty; petition; plea. 2. a request or reference to some person or authority for a decision, corroboration, judgment, etc. 3. Law. a. an application or proceeding for review by a higher tribunal. b. (in a legislative body or assembly) a formal question as to the correctness of a ruling by a presiding officer. c. Obsolete. a formal charge or accusation. 4. the power or ability to attract, interest, amuse, or stimulate the mind or emotions: The game has lost its appeal. 5. Obsolete. a summons or challenge.