jobcentre vs government office

jobcentre and government office both are nouns.

Word	Noun	Adjective	Verb	Adverb
jobcentre	Yes	No	No	No
government office	Yes	No	No	No

As nouns, government office is a hypernym of jobcentre; that is, government office is a word with a broader meaning than jobcentre:

jobcentre: a government office in a town where information about available jobs is displayed and where unemployment benefits are administered
government office: an office where government employees work

jobcentre (noun)	government office (noun)
a government office in a town where information about available jobs is displayed and where unemployment benefits are administered	an office where government employees work