Undies (noun)

A colloquial term for underwear, typically used to refer to undergarments worn by women.

Origin:

Shortened from the word underwear.

Examples:

1. I need to buy some new undies.
2. She forgot to pack her undies for the trip.
3. He liked to wear comfortable undies when he went to bed.
4. She picked out her undies carefully to match her outfit.
5. She always washed her undies before wearing them for the first time.