(space science) A period of time during which a spacecraft orbiting one celestial body can travel to a different body and enter orbit around it without excessive expenditure of fuel or reaction mass.

Any circular window, especially one of those found in churches of the Gothic architectural style and divided into segments by stone mullions and tracery.

plural of window manager

(graphical user interface) A piece of software that manages the layout of windows on the user's display.

A window that is hung horizontally, hinged on top, so that it swings outward.

Alternative form of window-shopping

Alternative letter-case form of French window

A large window at the front of a shop, behind which items for sale are displayed.

(architecture) A curved, bow-shaped window space projecting outward from the main walls of a building, similar to a bay window.

plural of window licker