sta·tio·nery 
/ˈsteɪʃəˌneri, Brit ˈsteɪʃənri/ noun
/ˈsteɪʃəˌneri, Brit ˈsteɪʃənri/ noun [noncount] 1 : materials (such as paper, pens, and ink) that are used for writing or typing
▪ a store that sells stationery = a stationery store ▪ stationery items/supplies 2 : paper that is used for writing letters and that usually has matching envelopes
▪ business stationery
▪ a store that sells stationery = a stationery store ▪ stationery items/supplies
▪ business stationery
Do not confuse stationery with stationary.
