Bowling balls are essential to play bowling, but there are various alternatives to calling them by their name. You can use phrases like "bowling orbs," "strike spheres," "alley balls," "knockdown globes," and "spare balls." These synonyms add a fun twist to the game and can be used by both casual and professional bowlers. Additionally, for those who like to keep things simple, you can also refer to the bowling ball by its weight or color. For example, you can say "I need my 16-pounder" or "pass me the blue ball." Whatever you choose to call them, bowling balls are key to the sport and make for an enjoyable game for all levels of bowlers.