objection vs protest

objection and protest both are nouns.

Word	Noun	Adjective	Verb	Adverb
objection	Yes	No	No	No
protest	Yes	No	Yes	No

As nouns, objection and protest are synonyms defined as:

objection and protest: the act of protesting; a public (often organized) manifestation of dissent

Other synonyms of objection include dissent.

As nouns, protest is a hyponym of objection; that is, protest is a word with a more specific, narrower meaning than objection:

objection (noun)	protest (noun)
(law) a procedure whereby a party to a suit says that a particular line of questioning or a particular witness or a piece of evidence or other matter is improper and should not be continued and asks the court to rule on its impropriety or illegality	the act of protesting; a public (often organized) manifestation of dissent
the act of protesting; a public (often organized) manifestation of dissent	a formal and solemn declaration of objection
the speech act of objecting	the act of making a strong public expression of disagreement and disapproval
the act of expressing earnest opposition or protest

objection (verb)	protest (verb)
	utter words of protest
	affirm or avow formally or solemnly
	express opposition through action or words