spot vs spotter

spot and spotter both are nouns.

Word	Noun	Adjective	Verb	Adverb
spot	Yes	No	Yes	No
spotter	Yes	No	No	No

spot (noun)	spotter (noun)
an act that brings discredit to the person who does it	someone who is the first to observe something
a business establishment for entertainment	a worker employed to apply spots (as markers or identifiers)
a lamp that produces a strong beam of light to illuminate a restricted area; used to focus attention of a stage performer	a worker employed at a dry-cleaning establishment to remove spots
a playing card with a specified number of pips on it to indicate its value	a person employed to keep watch for some anticipated event
a blemish made by dirt
a small contrasting part of something
an outstanding characteristic
a section of an entertainment that is assigned to a specific performer or performance
a short section or illustration (as between radio or tv programs or in a magazine) that is often used for advertising
a mark on a die or on a playing card (shape depending on the suit)
a point located with respect to surface features of some region
a small piece or quantity of something
a slight attack of illness

spot (verb)	spotter (verb)
mark with a spot or spots so as to allow easy recognition
become spotted
make a spot or mark onto
mar or impair with a flaw
catch sight of
detect with the senses