gang vs group

gang and group both are nouns.

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

As verbs, group is a hypernym of gang; that is, group is a word with a broader meaning than gang:

Other hypernyms of gang include aggroup.

gang (noun)	group (noun)
tool consisting of a combination of implements arranged to work together	any number of entities (members) considered as a unit
an organized group of workmen	a set that is closed, associative, has an identity element and every element has an inverse
an association of criminals	(chemistry) two or more atoms bound together as a single unit and forming part of a molecule
an informal body of friends

gang (verb)	group (verb)
act as an organized group	arrange into a group or groups
	form a group or group together