Meaning of the word thinner in English

What does thinner mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

thinner

US /ˈθɪn.ɚ/
UK /ˈθɪn.ɚ/

Noun

1.

a substance added especially to paint to make it flow more easily:

Example:
paint thinner
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