What is colonnade? How to use in English

The word "colonnade" originates from the Latin term "columna," meaning "column." In architecture, a colonnade is a row of columns that support an entablature, which is a horizontal structure that includes the architrave, fascia, and cornice. The term was first used in the 16th century to describe a row of columns used as a decorative feature in a building or a public space. In ancient Greece and Rome, columned structures were used to create grandiose forms of architecture. The columns were often fluted, which means they had vertical grooves cut into them. This design element added texture and visual interest to the structure. Today, colonnades are often used in architectural design to create a sense of grandeur, solemnity, or even festivity, depending on the context.