What is a bye in a chess tournament?

Answer 1

In any single elimination pool tournament with an odd number of players or teams, a by is always neecssary. This is one reason double elimination can be slightly more "fair", or points are used.

Players or team are paired, 1 to 1, but with an odd number in any round, a player has no one to play. This player gets advanced to the next round as if he/she had a win, and this is called a "bye". The play should be arranged such that no player or team gets more than one bye.

Answer 2

"bye" means the game has come to end without a looser or a winner.

that is both the players are equal.

so the point is equally shared between them.....