What is an engaged column?

An engaged column is characterized as a half-round column that is attached to a wall. This architectural feature provides both structural support and visual interest, often serving to enhance the aesthetics of a façade or interior space. Engaged columns are commonly found in classical architecture and are typically used to simulate the appearance of freestanding columns while functioning as integral elements of wall construction. This design choice allows for the blending of structural and decorative elements, contributing to the overall harmony and style of the architectural composition. The other options describe different types of columns or functions that do not align with the definition of an engaged column.