stand in verb 5noun 3forms 5 verb5 •To substitute for; to replace •to serve as an understudy. •To take a side in a dispute. •To make one of a party in a bet or other speculation. •(slang, no longer used) To cost (an amount).That coat stands me in four dollars. noun3 •A person of similar size and shape to an actor who substitutes for or replaces that actor during the lengthy process of setting up a shot, but who, unlike a double, does not appear in the film.They used a stand-in to set up the lighting so that the actor did not have to be there during the lengthy process. •A substitute; a replacement.Her stand in muffed a lot of lines. •A substitute.Beans, corn, and even chopped broccoli work not just as stand-ins but can elevate a meal. Each brings its unique texture and flavor profile. — 2025 formsstood in · standing in · stands in · stand ins · stand-ins