(also informal) ping pong) noun (no plural)
a game where players use a small round bat (= a piece of wood) to hit a small light ball over a net on a big table
ˈtable ˌtennis BrE AmE noun [uncountable]
an indoor game played on a table by two or four players who hit a small plastic ball to each other across a net SYN ping-pong
Table tennis is a game played inside by two or four people. The players stand at each end of a table which has a low net across the middle and hit a small light ball over the net, using small bats.
table tennis noun[noncount] : a game in which players stand at opposite ends of a table and use wooden paddles to hit a small plastic ball to each other across a net - compare ping-pong