Synonyms for the word "justifiers" include defenders, advocates, vindicators, and champions. These words describe individuals or groups who seek to justify or defend a particular action, decision, or belief. Defenders argue in favor of a position or course of action, while advocates offer support or testimony on behalf of a cause. Vindicators aim to vindicate an action or decision that has been criticized or misunderstood. Champions are strong supporters or protectors of a particular person, idea, or cause. While these words have slightly different connotations, they share a common thread of seeking to justify or defend something that is perceived as being under attack or in need of protection.