A straight from a ten to an ace with all five cards of the same suit. In poker all suits are ranked equally.
Straight Flush
Any straight with all five cards of the same suit. The highest card in the strait determines the winner when two players have a strait flush.
Four of a Kind
Any four cards of the same rank. If two players have Four of a Kind, the bigger fifth card (known as the kicker) decides who wins the pot.
Full House
Any three cards of the same rank together with any two cards of the same rank. "Aces full of Kings (3 Aces & 2 Kings) " is a bigger full house than "Kings full of Aces."
Flush
Any five cards of the same suit (not consecutive). The highest card of the five determines the rank of the flush.
Straight
Any five consecutive cards of different suits. Aces can count as either a high or a low card.
Three of a Kind
Any three cards of the same rank. The highest treo determines the rank.
Two Pair
Any two cards of the same rank together with another two cards of the same rank. The highest pair of the two determines the rank of the two-pair.