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 (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"