thinner

/ˈθɪnər/
noun
  1. A liquid used to make paint, varnish, or other substances less thick or more watery.
    • He added paint thinner to the can to make the paint easier to spread.
    • Always use thinner in a well-ventilated area because the fumes are strong.
    • The artist mixed a small amount of thinner with the oil paint to create a wash.
Antonyms
adjective
  1. Comparative form of thin; having less thickness, width, or density than something else.
    • The ice on the pond is thinner near the edges, so be careful.
    • She chose a thinner book to read on the short flight.
    • This slice of bread is thinner than the one I had for breakfast.
What does "thinner" mean? | whatsthatwordmean | whatsthatwordmean