People or animals that fly, or printed leaflets and advertisements distributed by hand to inform or promote something.
From Old English 'fleogan' meaning 'to fly' plus the agent suffix '-er' (one who does something). The noun has been used since Middle English, with the 'leaflet' meaning emerging in the 1900s.
This word has two completely different meanings—people/creatures that fly, and pieces of paper that don't! We use the same word because both scatter through the air, one through the sky and one through the streets.
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