a solid figure bounded by a spherical surface (including the space it encloses)

a glass or crystal globe used in crystal gazing by fortunetellers

a small sphere of camphor or naphthalene used to keep moths away from stored clothing

a ball that slides down a staff to show a fixed time; especially at an observatory

the luminous center of a nuclear explosion

a ball of fire (such as the sun or a ball-shaped discharge of lightning)