to make a formal or solemn declaration or affirmation of (something)
He protested his innocence
to execute or have executed a formal protest against (e.g. a bill or note)
chiefly NAmer to express usu strong objection to or disagreement with; to remonstrate against
She was unwilling to protest the cost of her ticket
to express usu strong disagreement or objection; to make a protest
to engage in an organized public demonstration of disapproval
to make a formal or solemn declaration or affirmation of (something)
He protested his innocence