stickernoun [ C ]
uk/ˈstɪk.ər/us/ˈstɪk.ɚ/a small piece of paper or plastic with a picture or writing on one side and glue or another similar substance on the other side, so that it will fasten to a surface:
a bumper/window sticker
Sophie's notebook is covered with stickers.
There were two different price stickers on the shoes I wanted to buy.
a digital image that is used in electronic communication in order to express a particular idea or feeling