Protest meaning : A formal objection, especially one by a group. A collective gesture of disapproval; a demonstration. The noting by a notary public of an unpaid or unaccepted bill. A written declaration, usually by the master of a ship, stating the circumstances attending loss or damage of ship or cargo, etc. To make a strong objection. To affirm (something). To object to. To call as a witness in affirming or denying, or to prove an affirmation; to appeal to. To make a solemn written declaration, in due form, on behalf of the holder, against all parties liable for any loss or damage to be sustained by non-acceptance or non-payment of (a bill or note). This should be made by a notary public, whose seal it is the usual practice to affix. To publish; to make known.