(a) Friendly matches are played for enjoyment and practice rather than for trophies or serious competition. In the chapter, the coach conducted friendly matches on the last Friday of each month. (b) An opponent is a person competing against you in a game or sport. Surya was Prabhat's opponent in the badminton match. (c) A tally of marks refers to keeping a count or record of points scored during a game. Prabhat was given the responsibility of keeping score for their match. (d) Sporting spirit means playing fairly, respecting opponents, and accepting both victory and defeat gracefully. By the end of the chapter, other students said Prabhat 'definitely has a great sporting spirit' after his change of heart.