noun
thinner
THIH-nuh
noun
1
A liquid used to dilute paint or another substance and make it less thick.
"He added paint thinner to loosen up the old varnish."
How to Use Thinner
Learner’s notesIn plain EnglishA liquid, like white spirit, that thins out paint or similar substances.
Common pairings
paint thinner
nail polish thinner
Word Forms
thinners plural
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He added paint _____ to loosen up the old varnish.