A style of lightweight shorts used as swimwear, associated with surfing.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "boardshorts" in a sentence
"With modern, lightweight swimwear fabrics available on the market today, it would be very easy to design a modest swimsuit of one's own or adapt a long sleeved surf shirt, long, loose boardshorts under a long cotton Sarong and wide straw hat."
"Even our surf lifesavers wear long sleeved surf shirts and long boardshorts when on the beach, along with suitable hats/caps."
"It includes long sleeve running shirt or rashy, sunglasses, wide brimmed surf hat with chinstrap, baggy boardshorts with big pockets."