coconspirator vs plotter

coconspirator and plotter both are nouns.

Word	Noun	Adjective	Verb	Adverb
coconspirator	Yes	No	No	No
plotter	Yes	No	No	No

As nouns, coconspirator and plotter are synonyms defined as:

Other synonyms of coconspirator include conspirator, machinator.

coconspirator (noun)	plotter (noun)
a member of a conspiracy	an instrument (usually driven by a computer) for drawing graphs or pictures
	a member of a conspiracy
	a planner who draws up a personal scheme of action
	a clerk who marks data on a chart