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.
You may want to improve your pronunciation of "protest" by saying one of the nearby words below:
Test your pronunciation on words that have sound similarities with protest:
Tips to improve your English pronunciation:
Break protest down into sounds: — say it out loud and exaggerate the sounds until you can consistently produce them.
Record yourself saying protest in full sentences, then watch yourself and listen. You'll be able to mark your mistakes quite easily.
Work on your intonation: stress, rhythm and intonation patterns are not easy to master in English but they are crucial to make others understand what you say. It's what expresses the mood, attitude and emotion.