brood : a group of young animals or children
Assembly/assemble
everyone
pack
Committee
Blue collar workers is another description for a large group of working class people.
choir
another word for large group is clan.
Another word starting with g is gloominess
choir or orchestra is another word for music group
Another word for gather or collect is... handle or group together.
Finish is another word for completion starting with the letter F.
stereotypical maybe sam?? :)