WordNet sense 1 (the combined stakes of the betters):

kitty

WordNet sense 2 (a small body of standing water (rainwater) or other liquid):

puddle

WordNet sense 3 (a small lake):

pond

WordNet sense 4 (an association of companies for some definite purpose):

consortium, syndicate, syndicate

WordNet sense 5 (any of various games played on a pool table having 6 pockets):

pocket billiards