Lancet window
A lancet is a tall, narrow window with a pointed arch at the top, named for its resemblance to the blade of a lancet. Lancets are the characteristic window of the Early English phase of Gothic architecture, in the late twelfth and thirteenth centuries, when they were built singly, in pairs or in groups of three, five or more.
Because a single lancet is narrow, it holds only one or two figures, or a column of small scenes. Groups of lancets are sometimes linked under one arch, which is how traceried windows began. The Five Sisters at York Minster are five lancets in a row.
Many parish churches have lancet windows in the chancel or the nave, and they are often filled with Victorian glass in the style of a medieval original.