Catch basin is a term commonly used to refer to a type of drainage system that is used to collect and divert rainwater runoff from impervious surfaces. However, there are many synonyms for this term that can be used to describe this type of drainage system. Some of the most common synonyms for catch basin include storm drain, catch pit, rainwater collector, and drain inlet. Other less common synonyms may include sump pump, water gully, and stormwater grate. Regardless of the specific term used, all of these synonyms refer to a vital piece of infrastructure designed to prevent flooding by rapidly removing excess rainwater before it can cause damage.