In Poker full house is superiour to all hands except quads ( four of a kind e.g four aces ), straight flush ( sequence with same suit e.g A2345 of spades ), royal flush (AKQJ10 of any of the four suits ) and ofcourse a bigger full house ( e.g AAAKK is better than KKKAA ). read more
Four of a kind beats a full house which in turn beats two pair. You can't have four of a kind AND two pair. read more
Four of a kind, also known as quads, is a poker hand containing four cards of the same rank and one card of another rank (the kicker), such as 9 ♣ 9 ♠ 9 ♦ 9 ♥ J ♥ ("four of a kind, nines"). It ranks below a straight flush and above a full house. read more