Meaning & Definition
noun
a substance used to reduce the viscosity of a liquid, such as paint or varnish.
He added some paint thinner to the mixture to achieve the right consistency.
a person or thing that is thinner.
After his diet, he became a much thinner version of his former self.
adjective
having less thickness or depth; more slender.
She wore a thinner sweater to stay comfortable in the warmer weather.
less substantial; having less density or solidity.
The clearer broth was much thinner than the rich and hearty soup.
Etymology
From the verb 'thin', with the suffix '-er' indicating a person or thing that performs or causes an action.
Common Phrases and Expressions
paint thinner:
A solvent used to reduce the thickness of paint.
thinner than air:
Referring to something that is very light or insubstantial.
thinner than a whisper:
Describing a sound that is very faint or difficult to hear.
Slang Meanings
To lose weight or become slender.
She decided to go on a diet to get thinner.
To make something less intense or severe.
They decided to thinner the punishment to keep her from being expelled.