The term "riding bitt" refers to a type of bit used in horse riding, which helps the rider control the horse's movements. There are many synonyms for this term, including "snaffle bit", "bridle bit", "simple bit", "direct-action bit", and "jointed bit". These terms all refer to the same type of bit and are often used interchangeably depending on the context. The choice of bit can have a significant impact on the horse's behavior, so it's important to select the right type for the task at hand. Regardless of which term is used, the goal is always the same - to create a safe and effective way to control a horse.