sticker
nounUK /ˈstɪk.ər/
US /ˈstɪk.ɚ/
A sticker is a small piece of paper or plastic that sticks to things.
She put a star sticker on her notebook.
OTHER MEANINGS
2. A person or thing that sticks, such as a thorn or burr.
He pulled a sticker out of his sock after the hike.
3. A price tag or notice attached to an item.
The sticker on the jar said it cost three dollars.
4. Something that puzzles or stumps a person.
That tricky question was a real sticker.