controller vs nazi

controller and nazi both are nouns.

Word	Noun	Adjective	Verb	Adverb
controller	Yes	No	No	No
nazi	Yes	No	No	No

As nouns, nazi is a hyponym of controller; that is, nazi is a word with a more specific, narrower meaning than controller:

controller: a person who directs and restrains
nazi: derogatory term for a person who is fanatically dedicated to, or seeks to control, some activity, practice, etc.

Other hyponyms of controller include overcomer, subduer, surmounter, suppresser, suppressor, withholder.

controller (noun)	nazi (noun)
a mechanism that controls the operation of a machine	derogatory term for a person who is fanatically dedicated to, or seeks to control, some activity, practice, etc.
someone who maintains and audits business accounts
a person who directs and restrains