protester

US /ˈproʊ.tes.tɚ/
UK /ˈproʊ.tes.tɚ/
"protester" picture
1.

Demonstrant, Protestierender

a person who publicly demonstrates strong objection to something or expresses dissent, often as part of a group

:
The police arrested several protesters at the demonstration.
Die Polizei verhaftete mehrere Demonstranten bei der Demonstration.
She joined the group of environmental protesters.
Sie schloss sich der Gruppe der Umweltprotestler an.