- The fingernail on the thumb.
- A rough sketch.
- A small picture (e.g. the size of ones thumbnail), used as a compact representation of a larger image.
Etymology: thumb + nailThumbnail (image) was first attested w:1852, 1852.
- Dutch: duimnagel
- French: vignette
German: Vorschaubild , Miniaturbild
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