A more thorough explanation:

Definition: A raffle is a type of lottery where people buy tickets or chances to win a prize. The winner is chosen randomly from all the tickets sold.

• A school is holding a raffle to raise money for a new playground. Students can buy tickets for $1 each and the winner will receive a new bike.
• A charity is hosting a raffle to raise funds for cancer research. People can buy tickets for $5 each and the winner will receive a trip to Hawaii.

Both examples illustrate the definition of a raffle because they involve people buying tickets for a chance to win a prize. The winner is chosen randomly from all the tickets sold, which makes it fair for everyone who participates.