natatoria (noun) pool: collection of liquid
Detalii: billiards is from French billard 'cue' or 'bent stick' or 'stick to push balls'; billiards is the general name though Americans mainly play pool or pocket billiards - with eight ball and snooker being forms of pool
Sinonime: set of three, ternion, three, threesome, trey, triad, triangle, trilogy, trine, trinity, triple, triplet, triplicate, triptych, triune, triunity, troika