The term "catchwater drain" refers to a channel or duct that collects and diverts surface water in a particular direction. Some synonyms for the word include "gutter," "channel," "runway," "ditch," "culvert," and "pipe." These synonyms are similar in their function as they all act as a means to collect and redirect water away from a particular area. The specifics of their design, however, can vary based on location, climate, and purpose. For example, a culvert may be used to carry water under a road or bridge, while a gutter may be used to direct rainwater away from a building's foundation.