Natural Royal Flush
This is the highest hand in standard Poker and consists of the following cards: Ace, King, Queen, Jack, Ten, all of the same suit.

Note: This is a natural hand and cannot contain the Joker. If some of the cards necessary for a Royal Flush are present along with one or both of the Jokers then the hand is called a Joker Royal Flush.

E.g. or 

Joker Royal Flush
This is any hand where one or more of the cards needed for a Natural Royal Flush have been substituted with one or more Jokers. 

E.g. or 

Five of a Kind
This is a hand containing four cards of the same denomination and a Joker. 

E.g. or 

Straight Flush

This is a combination of five cards in sequence all of the same suit.

E.g. or 

Four of a Kind
This is a combination of four cards, of the same denomination, one in each suit.

E.g. or 

Full House
This is a combination of three cards of one denomination and two cards of another denomination.

E.g. or 

Flush
Any five cards all of the same suit.

E.g. or 

Straight
Five cards in sequence of any suit.

E.g. or 

Three of a Kind
Three cards of the same denomination and two unmatched cards.

E.g. or 

Two Pairs
Two different pairs and any fifth card.

E.g. or