Something that is silken is made of silk or feels like silk.
The word silken makes people think of smoothness, luxury, and elegance.
Examples:
She wore a silken dress to the party.
The cat's fur was silken to the touch.
The silken sheets felt cool against her skin.
The silken scarf fluttered in the breeze.
The princess wore a silken gown that shimmered in the light.
The silken fabric was so smooth and shiny.