Inspector Maigret vs Commissaire Maigret

Inspector Maigret and Commissaire Maigret both are nouns.

Word	Noun	Adjective	Verb	Adverb
Inspector Maigret	Yes	No	No	No
Commissaire Maigret	Yes	No	No	No

As nouns, Inspector Maigret and Commissaire Maigret are synonyms defined as:

Inspector Maigret and Commissaire Maigret: a fictional detective in novels by Georges Simenon

Other synonyms of Inspector Maigret include Jules Maigret.

Inspector Maigret (noun)	Commissaire Maigret (noun)
a fictional detective in novels by Georges Simenon	a fictional detective in novels by Georges Simenon