#1 building n. [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". wn
#2 building n. [construction] the act of constructing something; "during the construction we had to take a detour"; "his hobby was the building of boats". wn
#3 building n. [construction] the commercial activity involved in repairing old structures or constructing new ones; "their main business is home construction"; "workers in the building trades". wn
#4 building n. the occupants of a building; "the entire building complained about the noise". wn
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