S: (n) building, edifice (a structure that has a roof and walls and stands more or less permanently in one place) "there was a three-story building on the corner"; "it was an imposing edifice"
S: (n) window (a transparent opening in a vehicle that allow vision out of the sides or back; usually is capable of being opened)
S: (n) window (a transparent panel (as of an envelope) inserted in an otherwise opaque material)
S: (n) window (an opening that resembles a window in appearance or function) "he could see them through a window in the trees"
S: (n) window (the time period that is considered best for starting or finishing something) "the expanded window will give us time to catch the thieves"; "they had a window of less than an hour when an attack would have succeeded"