A window is an opening in a wall, door, roof or vehicle that allows the passage of light and air. The two crossword solutions for the term 'window, type of' are ORIEL and CASEMENT. An ORIEL window is a bay window that projects from the main wall of a building and is supported on brackets or corbels. A CASEMENT window is a window that is attached to its frame by one or more hinges at the side. It is opened by swinging the sash outward or inward.