nouns
a formal and solemn declaration of objection
"they finished the game under protest to the league president"; "the senator rose to register his protest"; "the many protestations did not stay the execution"
the act of protesting; a public (often organized) manifestation of dissent
the act of making a strong public expression of disagreement and disapproval
"he shouted his protests at the umpire"; "a shower of protest was heard from the rear of the hall"
is a type of (narrower)
the speech act of objecting