抗议

The athlete protested to the referee about the decision.

They lodged a strong protest with the local authorities against these outrages.

solemn protest; stern representations (to)

mass protest

emphatic/strong/vehement/vigorous protest

verbal/formal protest

walk out of court in protest

spark/touch off a protest; arouse/cause/draw/spark/trigger a protest; draw remonstrances; raise an outcry

send in a written protest

deliver/file/lodge/present/register/tender a protest; make representations (to an organization)

protest against foreign aggression