spotter

nouns

a worker employed at a dry-cleaning establishment to remove spots

spotter

is a type of (narrower)

a worker who is hired to perform a job

a worker employed to apply spots (as markers or identifiers)

spotter

is derived from

is a type of (narrower)

a worker who is hired to perform a job

a person employed to keep watch for some anticipated event

lookout, lookout man, picket, scout, sentinel, sentry, spotter, watch

is derived from

someone who is the first to observe something

discoverer, finder, spotter

is derived from