Vying is the old English word for a process of betting on who has the best hand. When a player bets, or raises the stake, anyone who is unwilling to match their bet must drop out and abandon whatever they have staked so far. It is possible to bluff by betting on bad cards, hoping that the other players will all drop out. Most vying games are generally showdown games in which the showdown is preceded by one or more periods of betting on who has the best combination of cards.
By far the best known vying game worldwide is Poker, which has many versions, listed in the Poker Variants index.
Here are some other vying games. Most are gambling games, but an interesting exception is the Spanish partnership game Mus.
There are games of other types which include vying. Games of the Poch group have a poker-like game in the middle, before the stops game. Also some trick-taking games allow the play to be interrupted by proposals to raise the stake for winning; examples are Toepen, Kaiserjass, Watten and most games of the Put group. Within the Put group the Latin American game Truco has vying over combinations of cards as well as vying over who will take more tricks.