1. 球状物；太阳；月亮
An orb is something that is shaped like a ball, for example the sun or moon.

2. 宝球（国王或女王在重要仪式上携带的顶部饰有十字架的装饰球）
An orb is a small, ornamental ball with a cross on top that is carried by some kings or queens at important ceremonies.

1. the ball-shaped capsule containing the vertebrate eye

Synonym: eyeball

2. an object with a spherical shape

e.g. a ball of fire

Synonym: ballglobe