Runs rum is a phrase that means a rumor or piece of gossip. There are numerous synonyms that can be used in place of runs rum, including "hearsay," "scuttlebutt," "chatter," "buzz," and "grapevine." Other synonyms for runs rum include "whispers," "speculation," "talk," "tittle-tattle," and "idle talk." Each of these synonyms shares the same connotation with runs rum and can be used interchangeably in a variety of contexts. Whether discussing celebrity gossip or office politics, using these synonyms can help spice up a conversation and make it more interesting.