Small pictures, shapes, or labels with adhesive on the back that you can stick onto surfaces, or things that stick or remain attached.
From 'stick' (to adhere) plus '-er' (one who does something), then '-s' for plural. The adhesive stickers as consumer products became popular in the late 20th century.
Sticker collecting became a huge phenomenon in the 1980s and 90s, and they're still one of the cheapest ways to personalize your belongings—the economics of fun!
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