swimming pool 
noun
An artificial pool for swimming in.Hordes of people struggling to keep cool headed straight for paddling pools and swimming pools across the region....
- Of course, all we found were empty fields, empty locker rooms, empty swimming pools and empty gyms.
- The houses share communal indoor and outdoor swimming pools, tennis courts, a gym and health spa.
Synonyms
pool, baths, leisure pool, lido, piscina;
British swimming bath(s)
North American rare natatorium