stationery UK /ˈsteɪʃ(ə)n(ə)ɹi/US /ˈsteɪʃənɛɹi/ noun1 •Writing materials, envelopes, office materials.When the school year finished, he put all of his stationery away in the loft, as he would have no need for pencils and exercise books during the holidays.We can pick up more paper and pens at the stationery store. formsstationeries