window

ot noun

1. The inedible parts of a grain-producing plant. To separate out the chaff, early cultures tossed baskets of grain into the air and let the wind blow away the lighter chaff.
2. A period of time when something is available. launch window;  window of opportunity;  You have a two-hour window of clear weather to finish working on the lawn.
3. Straw or hay cut up fine for the food of cattle.
4. Any excess or unwanted material, resource, or person; anything worthless.

fe’l verb

1. To furnish with windows.
2. To place at or in a window.