undies
nounUK /ˈʌndiz/
US /ˈʌndiz/
Underwear that you wear under your clothes.
Make sure you pack clean undies for the trip.
OTHER MEANINGS
2. Informal word for women's or girls' underpants.
She bought a pack of cotton undies at the store.
3. Any light undergarment worn beneath outer clothing.
He threw his undies in the wash basket.
4. Playful or childish term for underwear in general.
The toddler ran around in his undies after his bath.