Spotter meaning : A person who observes something. A member of a sniper team who in addition to this function is responsible for providing additional information about targets from a different point of view. One who supervises a person performing an activity, in order to help them should they be unable to complete it. A person who gives directions of a crane or vehicle challenging to navigate from a different point of view to the moved load. Dolphins of the genus Stenella, and specifically Stenella attenuata distinguished from the streaker (Stenella coeruleoalba) and the spinner (Stenella longirostris). A team member responsible for communication with the driver to keep them up-to-date about on-track events, such as other nearby cars.