Answer:

bye

AnswerCrossword Clue
BYETitle word sung 52 times in a 2000 hit by 'N Sync
BYEWhat a seed might start out with
BYEA word before you go
BYEWord spoken while waving
BYETournament pass
BYECry that's often doubled
BYEIt leads to early advancement
BYEWhat a seed often has
BYEExit line
BYEBit of scheduling luck at a tournament
BYEAutomatic tournament advance
BYEDeparture announcement
BYEExiter's exclamation
BYETournament helper
BYELucky draw
BYELuck of the draw?