Drain pipes are essential components of any building's plumbing system as they allow wastewater and other liquid materials to flow out of the structure. However, there are many other names for drain pipes that can be used interchangeably. Examples include sewage pipe, waste pipe, gutter tube, discharge line, effluent conduit, and culvert. Each of these names describes the function of a drain pipe and can be used to convey the same meaning. Whether it's a small residential building or a large commercial structure, drain pipes are crucial to maintaining a clean and safe environment. By using different synonyms, it's easy to communicate the role and importance of these essential components in plumbing systems.