adjective

 

distance Something that is thin is smaller than usual between its opposite sides.

a thin slice of ham

 

person A thin person or animal has very little fat on their body.

 

liquid A thin substance or liquid has a lot of water in it and flows easily.

thin soup

 

amount having only a small number of people or a small amount of something

Government troops were very thin along the border.

 

air Thin air does not have enough oxygen in it.

 

verb

 

to make a substance less thick, often by adding a liquid to it