thinner
/ˈθɪnə(ɹ)/
Proposed by a contributor, not yet supported by evidence.
Also seen as: thinners
Sense 1
Meaning · English
A liquid substance used to thin the consistency of another liquid.
Noun
Examples
Turpentine or mineral spirits can be used as a thinner for oil-based paints.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Something that thins or thins out (another thing).
Noun
Examples
Pomegranate juice and exercise are great natural blood thinners.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “thinner” mean?
A liquid substance used to thin the consistency of another liquid.
Is “thinner” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.