Focus on the pronunciation of building
English definition of “building”
/ˈbɪl·dɪŋ/ n [C/U]
› a structure with walls and a roof, such as a house or factory, to give protection to people, animals, or things: [C] an apartment/office building [C] Many buildings were badly damaged or destroyed by the earthquake. › Building is also the activity or business of putting together structures with walls and a roof.