ace
amigo
associate
aunt
auntie
bedfellow
bedmate
benchfellow
birthmate
blood brother
bosom buddy
boy
brethren
brother
bub
bubba
buck
bud
bunkie
bunkmate
butty
camarade
chamberfellow
chum
classmate
clubmate
co-worker
colleague
colt
comate
companion
company
compeer
comrade
confrere
consociate
consort
copartner
copemate
copesmate
couchmate
country cousin
cousin
cousin once removed
cousin twice removed
cradlemate
crony
cub
cupmate
daughter
buddies
buddying
buddys
Judie
bloody
cruddy
cuddy
duddy
muddy
ruddy
study