1. The act of expressing earnest opposition or protest Noun
2. The speech act of objecting Noun
3. The act of protesting; a public (often organized) manifestation of dissent Noun
4. (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 Noun