Golf balls are an essential equipment for playing the sport of golf. However, there are various synonyms or alternative names that are used to refer to golf balls in different parts of the world. For instance, they are referred to as "golf drops" in the UK and "whiteys" in Australia. In North America, some of the commonly used synonyms for golf balls include "golf orbs," "golf spheres," and "golf rounds." Smaller versions of golf balls used for practice or indoor golf are called "wiffle balls" or "foam balls". Regardless of what they are called, golf balls are an unpredictable and essential part of the game and have to be selected with care.