warmundershirt
nounUK /ˈwɔːmˌʌndəʃɜːt/
US /ˈwɔːrmˌʌndərʃɜːrt/
A soft shirt you wear under your clothes to stay warm.
He put on a warmundershirt before going out in the snow.
RELATED WORDS
OTHER MEANINGS
2. A thin shirt worn next to the skin for extra heat in cold weather.
She packed a warmundershirt for the winter trip.
3. Any close-fitting garment worn beneath other clothing for warmth.
The hikers wore warmundershirts under their jackets.
4. A cozy top layer that keeps the body warm indoors.
On chilly mornings, he sleeps in a warmundershirt.