Upstairs/ˌʌpˈsterz/ Definition 1 of 3Pro Tip 1/3Sound Direction Use 'upstairs' to indicate the source of sounds coming from a higher floor. Do you hear that music? It's coming from upstairs. Pro Tip 2/3Physical Movement 'Upstairs' implies physical movement towards a higher level inside buildings. Could you go upstairs and get my glasses? Pro Tip 3/3Location Context Specify 'upstairs' when directing someone to a location above the first floor. The meeting room? It's upstairs, on the left.