(astronautics) The specific time period during which a rocket or spacecraft may be launched in order to achieve its mission.

Time in one's car during which one does activities related to one's job.

A window that has frames hinged on the side and that opens outward or inward.

A row of cut grain or hay allowed to dry in a field. / A line of leaves etc heaped up by the wind. / A similar streak of seaweed etc on the surface of the sea formed by Langmuir circulation.

(transitive) To arrange (e.g. new-made hay) in lines or windrows.

(architecture) A skylight that lies along the slope of the roof.

A thin outer coat designed to resist wind chill and light rain.

A marine sport in which one stands on a floating board (typically 2 - 3 meters in length) to which a sail is attached. The board is steered by tilting the sail or banking the board. Some windsurfers use large waves to perform jumps and other stunts.

present participle of windsurf

(architecture) An outside door with glass panes, serving as a window and a door