scout group vs scout troop

scout group and scout troop both are nouns.

Word	Noun	Adjective	Verb	Adverb
scout group	Yes	No	No	No
scout troop	Yes	No	No	No

As nouns, scout group and scout troop are synonyms defined as:

Other synonyms of scout group include troop.

scout group (noun)	scout troop (noun)
a unit of Girl or Boy Scouts	a unit of Girl or Boy Scouts