burgomaster vs city manager

burgomaster and city manager both are nouns.

Word	Noun	Adjective	Verb	Adverb
burgomaster	Yes	No	No	No
city manager	Yes	No	No	No

As nouns, city manager is a hypernym of burgomaster; that is, city manager is a word with a broader meaning than burgomaster:

burgomaster: a mayor of a municipality in Germany or Holland or Flanders or Austria
city manager: the head of a city government

Other hypernyms of burgomaster include mayor.

burgomaster (noun)	city manager (noun)
a mayor of a municipality in Germany or Holland or Flanders or Austria	the head of a city government