"Wylies drain" is a term referring to a specific type of drainage system. Although not widely known, there are various synonyms used to describe similar drainage systems. These synonyms include "culvert", which denotes a tunnel-like structure for water drainage. Another synonym is "gutter", which refers to a shallow channel along the edges of roads or buildings to collect and redirect surface water. Additionally, the term "storm drain" is often used, indicating a system designed to channel rainwater away from urban areas. These synonyms provide a range of alternatives to describe drainage systems similar to that of a "Wylies drain", expanding our vocabulary to better discuss and understand such infrastructure.