Meaning of WINDOW in English

I. ˈwin(ˌ)dō, -_də; -_dəw or -_dō+V; dial ˈwindər or -dē or -di noun

( -s )

Usage: often attributive

Etymology: Middle English windowe, from Old Norse vindauga, from vindr wind, air + auga eye — more at wind , eye



(1) : an opening in a wall of a building or a side of a vehicle to admit light usually through a transparent or translucent material (as glass), usually to permit vision through the wall or side, and often to admit air

(2) : an opening in a partition or a wall through which business is carried on (as by a bank teller or a ticket agent)

b. : a space behind a window ; especially : a space behind a glass window that is used for display especially of merchandise


(1) : the casement, sash with its fittings, or other framework that closes a window opening

(2) : windowpane

the ball broke a window

2. : a means of entrance (as to the mind) ; especially : a means of obtaining information or maintaining contact

dedicated himself to the task of keeping his country a window on the West — Charles Hodges


a. : any of various openings resembling or suggestive of a window: as

(1) : a small opening through which it is possible to see : slot

(2) : a small opening in an anatomical structure : fenestra

(3) : fenster

(4) : a transparent panel (as in an envelope, paper bag, or carton)

(5) : a transparent plate (as in the front of a diving helmet)

b. : eye

a pair of indigo windows — New York Sun

c. : a small polished facet on the surface of a rough gemstone that permits inspection of the interior

4. : strips of foil or metal-coated paper dropped from airplanes to interfere with an enemy's radar detection by creating spurious images — called also chaff

5. : a hairless patch on a pelt or fur

II. transitive verb

( -ed/-ing/-s )

1. obsolete : to place in a window

2. : to provide with or as if with windows

III. noun

1. : a range of wavelengths in the electromagnetic spectrum to which a planet's atmosphere is transparent


a. : an interval of time within which a rocket or spacecraft must be launched to accomplish a particular mission

b. : a usually short interval of time during which a certain condition or an opportunity exists

a window of vulnerability to Soviet attack

allowed the race committee a three-day window — Robert Sullivan

3. : an area at the limits of the earth's sensible atmosphere through which a spacecraft must pass for successful reentry

4. : any of the areas into which a computer display may be divided and on which distinctly different types of information may be displayed

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.