¹ thin adjective

• having a small distance between the top and bottom or front and back surfaces : not thick
• not having a lot of extra flesh on the body : not fat
• not growing closely together : not growing in a large amount

² thin verb

• to make (something or someone) thin or thinner or to become thin or thinner: such as
• to become less crowded, close together, or full
• to make (a liquid) less thick by adding water or some other liquid to it

³ thin adverb

• in a way that makes thin pieces, layers, etc.