noun
trunks
TRUNKS/trˈʌŋks/
Shorts worn for swimming or other sports.
The blue trunks lie flat with short legs and a drawstring waist.

Etymology
The body-trunk or torso sense underlies this clothing name. Originally theatrical jargon for short breeches, trunks broadened to breeches generally and then came to denote short, close-fitting garments worn by swimmers and other athletes.
In context
they might look like some really classic swim trunks from back in the day swim trunks with elastic waistbands haven't really changed much
More examples
- He packed swimming trunks for the trip.
- The boxer wore red trunks.
- She rinsed the sandy trunks.
Forms
trunks
Similar words
- shorts
- Shorts need not be designed for swimming or sport.
- swimwear
- Swimwear includes garments beyond trunks.