Definitions of protest:

• noun:   the act of protesting; a public (often organized) manifestation of dissent
• noun:   a formal and solemn declaration of objection

  Example: "They finished the game under protest to the league president"

• noun:   the act of making a strong public expression of disagreement and disapproval

  Example: "He shouted his protests at the umpire"

• verb:   express opposition through action or words
• verb:   utter words of protest
• verb:   affirm or avow formally or solemnly

  Example: "The suspect protested his innocence"