Difference between Bathing Suit and Bathing Costume

BATHING SUIT vs BATHING COSTUME: NOUN

The clothes that one wears when bathing in the sea or a swimming pool; a swimming costume, bathing suit, swimming trunks or swimsuit.
Tight fitting garment worn for swimming

Panties, Wetsuit, Bra, Swimming trunks, Cossie, Monokini, Thong, Beachwear, Swimwear, Underwear, Tankini, Bikini, Bathing costume, Swimming costume, Swimsuit

Halter, Bathrobe, Bidet, Spa, Bathe, Bra, Toilet, Bikini, Topless, One piece, Bathers, Swim, Swimming costume, Swimsuit, Bathing suit

Skivvies, Sundress, Pantyhose, Dress, Panties, Bra, Swimming trunks, Cossie, Monokini, Thong, Beachwear, Swimwear, Underwear, Bikini, Swimsuit

Bathtub, Towel, Spa, Halter, Bra, Bidet, Bathrobe, Bathe, Toilet, Topless, Bikini, One piece, Swim, Swimsuit, Bathing suit

Shop for bathing suit size online at Target.
Sports Day Attire: one piece modest bathing suit.
Do you shower with your bathing suit on?
No, but I have packed a bathing suit.
Don Wilson puts on his new bathing suit.
He was only wearing a yellow bathing suit.
Wearing a bathing suit, she washed the car.
Positano or Cinque Terre, pack a bathing suit!
Students are required to bring a bathing suit, bathing cap, goggles and towel.
Additionally, be sure to thoroughly rinse your bathing suit after floating, or say goodbye to that bathing suit.

On hearing that her client had not brought a bathing costume, after the intense darkness of the hall?
None of our wet suits would fit him, so he dived naked except for an ancient black wollen bathing costume.