The term 'Pot Addition' is a phrase used in the game of poker. It refers to the amount of money that is added to the pot by players when they make a BET. The crossword solutions for this term are ASH (3 letters), ANTE (4 letters), and BET (3 letters). ASH is an abbreviation for the word 'ante, ' which is the minimum amount of money that must be put into the pot before the start of a hand. ANTE is the actual amount of money that is put into the pot by each player before the start of a hand. BET is the amount of money that a player puts into the pot during the course of a hand.