The word "narks" is a slang term typically used to describe individuals who inform on or betray others to authorities or other parties. There are several synonyms for this word, including snitch, rat, informant, traitor, informant, betrayer, and turncoat. Each of these terms carries a similar connotation of someone who has betrayed a trust or broken a bond of loyalty. While some may view narks as helpful in certain situations, others see them as untrustworthy or unreliable. Regardless of personal opinions, these synonyms offer alternative ways of describing individuals who are known to "nark" on others.