Definition of Two Pair in Poker
A hand of poker when you have 2 different One Pairs. When 2 players both have a Two Pair, they will compare the highest valued One Pair first, then the other pair.
For example, two pairs with two queens and two tens would beat two pairs with queens and sevens.
If they still tie, they will compare the rest of their cards in descending order of value so the kicker plays.