#1
spotter n. a worker employed at a dry-cleaning establishment to remove spots
. wn #2
spotter n. a worker employed to apply spots (as markers or identifiers)
. wn #3
spotter n. [
lookout, lookout man, sentinel, sentry, watch, scout, picket] a person employed to keep watch for some anticipated event
. wn #4
spotter n. [
finder, discoverer] someone who is the first to observe something
. wn