1. having little thickness or depth; not thick
2. having little flesh or fat; not fat
3. not dense or concentrated; watery

1. to make or become thin or thinner

1. in a thin manner; thinly

Examples

• The ice on the pond was too thin to skate on safely.
• She has thin hair that she styles carefully each morning.
• The soup was too thin, so I added more vegetables.
• His excuse was pretty thin and unconvincing.
• You should thin the paint with water before applying it.
• The crowd began to thin out after midnight.
• Spread the butter thin on the toast.