age group
band
battalion
bevy
body
brigade
bunch
cabal
cadre
camarilla
cast
cell
charmed circle
circle
clan
clique
closed circle
cohort
company
complement
contingent
corps
covey
crew
crowd
detachment
detail
division
elite
elite group
faction
fleet
gang
group
grouping
groupment
in-group
ingroup
inner circle
junta
junto
mob
movement
out-group
outfit
pack
party
peer group
phalanx
lot
set
Bloomsbury Group
Bohemia
Mafia
brain trust
galere
hard core
kitchen cabinet
loop
maffia
military junta
rogues' gallery
sect
entourage
gathering
retinue
notary
rotary