gang vs section gang

gang and section gang both are nouns.

Word	Noun	Adjective	Verb	Adverb
gang	Yes	No	Yes	No
section gang	Yes	No	No	No

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

Other hyponyms of gang include shift, detail, chain gang, ground-service crew, ground crew, road gang, stage crew.

gang (noun)	section gang (noun)
tool consisting of a combination of implements arranged to work together	a work crew assigned to a section of a railroad
an organized group of workmen
an association of criminals
an informal body of friends

gang (verb)	section gang (verb)
act as an organized group