Real Dictionary

table tennis
uncountable noun: 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 in American English
a game somewhat like tennis in miniature, played on a large, rectangular table, with a small, hollow celluloid or plastic ball and short-handled, wooden paddles
noun: a game resembling tennis, played on a table with small paddles and a hollow celluloid or plastic ball

table tennis in British English
noun: a miniature form of tennis played on a table with small bats and a light hollow ball