A straight in hold'em is the same as a straight in any other game: five cards with successive ranks, such as 45678.
In Hold'em they are played a bit differently than in other games since to have a straight means the community cards must make a straight possible. And anytime a straight is possible for you it means it is possible for another player as well.
For example if you have T9 and the board shows JKQ you have a straight. But so would a player with AT. In this case you would have the inferior straight.
In poker, a straight beats trips.
In poker, a straight beats a trip.
In a game of poker, qka23 is not a straight. A straight in poker is a hand with five consecutive cards of any suit.
No, a full house beats a straight in poker.
No, in poker, three of a kind beats a straight.
No, in poker, a three of a kind beats a straight.
In a game of poker, the player with the highest straight wins if there is a straight on the table.
In poker, if two players have a straight, the player with the highest straight wins.
Yes, in poker, a straight beats a three of a kind.
Yes, in poker, a straight beats a three of a kind.
Yes, in poker, a three of a kind beats a straight.
In poker, a straight is formed with five cards in a sequence. So, a total of five cards are needed to form a straight in poker.