definition of
spotter

[1] #1 spotter n. a worker employed at a dry-cleaning establishment to remove spots. wn

[2] #2 spotter n. a worker employed to apply spots (as markers or identifiers). wn

[3] #3 spotter n. [lookout, lookout man, sentinel, sentry, watch, scout, picket] a person employed to keep watch for some anticipated event. wn

[4] #4 spotter n. [finder, discoverer] someone who is the first to observe something. wn