lottery, lot, raffle
鬮 centers on random selection by drawing lots: a lottery, a raffle, or any situation where chance decides an outcome.
鬮 combines 鬥 (fight, struggle) with 龜 (turtle). The exact historical development is uncertain, but it likely relates to the ancient practice of using turtle shells in divination or drawing lots.
Inside the fighting enclosure 鬥, a turtle 龜 is used to draw lots. Imagine two people struggling over a turtle shell that holds the winning raffle ticket.
For キュウ, imagine a giant turtle shell filled with numbered balls for a lottery, and the announcer shouts 'Q!' (cue) when your number is drawn: Q -> キュウ.