The word 活动 is formed through the logical combination of two conceptual characters: 活, which carries the core meaning of "living", "alive", or "active", and 动, which means "to move" or "movement". By merging these ideas, the compound naturally evokes the image of something that is not static but is instead characterized by life, motion, and operation. It conceptually fuses the state of being active with the action of moving, thus arriving at the integrated sense of an "activity" or "event" where things are in motion and engaged.