thinner
🇺🇸
/ˈθɪnər/
🇬🇧
/ˈθɪnə(r)/
A liquid that makes paint or varnish less thick, easier to spread.
To apply the paint smoothly, I added a bit of thinner to it.
絵料を滑らかに塗るために、少し薄めを加えた。