a public protest against the war
a peaceful/violent protest
I believe that we could force the authorities to do something for us by joining [together] in a very big protest. (First Certificate in English; B2; Spanish)
Why are those people protesting outside the administration building?
Groups of students have been protesting against the tuition increase.
Undoubtedly, the human rights' defenders would protest. (First Certificate in English; B2; Spanish)
They protested, but no one would listen.
The young child protested that she didn't want to leave her mother.
A lot of people protested to the city council about the proposed parking regulations.
I'd also like to point out that although the service is pleasant, it's a bit slow, which often makes the customers impatient and leads them to protest. (First Certificate in English; B2; Spanish)