(intransitive) To make a strong objection. / (transitive) To affirm (something). / (transitive, chiefly Canada, US) To object to.

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.

One who protests, either alone or in a public display of group feeling. / (law) One who protests a bill of exchange, or note.

Alternative letter-case form of Protestant / protesting

(chiefly law) One who protests; a protester. / Alternative letter-case form of Protestant

(Christianity) A member of any of several Christian denominations which separated from the Roman Catholic Church based on theological or political differences during the Reformation (or in some cases later).

(Christianity) Of or pertaining to several denominations of Christianity that separated from the Roman Catholic Church based on theological or political differences during the Reformation.

simple past tense and past participle of protest

a formal solemn objection or other declaration

plural of Protestant