An independent group employed to challenge an organization by assuming an adversarial role or point of view.

plural of red team

plural of red phalarope

plural of red crossbill

A depiction of a red star, often used as a symbol of communism and the Soviet Union. / (metonymically) Socialism or communism itself.

(historical, politics) A violent Republican.

plural of Red Republican

Synonym of rose gold

present participle of red pill

simple past tense and past participle of red pill