Thinner may mean:
Paint thinner, a solvent used in painting and decorating, for thinning oil based paint and cleaning brushes.
*"Thinner" (novel), a 1984 horror novel by Stephen King, written as Richard Bachman
*"Thinner" (film), a 1996 horror film based on the novel by Stephen King
Thinner (netlabel), a German netlabel releasing electronic music
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