A curtain rail, also known as a drapery rod, is a long metal or plastic bar used to hang curtains or drapes. Other synonyms for curtain rail include curtain rod, traverse rod, drapery pole, and window rod. A curtain rod is typically used to hang curtains or drapes, and can be mounted on the wall or window frame with brackets or hooks. A traverse rod allows for curtains to be opened and closed manually with a cord, while a drapery pole is a decorative rod that adds style and design to the window treatment. A window rod is a general term for any type of rod used to hang curtains or drapes on a window.