ace
adjunct
ally
amigo
associate
bedmate
bosom buddy
brother
brother-in-arms
buddy
bunkie
bunkmate
butty
camarade
chamberfellow
chum
classmate
coadjutor
cohort
colleague
comate
companion
company
compatriot
compeer
comrade
confederate
confrere
consociate
consort
copartner
crony
fellow
fellow member
fellow student
girl friend
gossip
mate
messmate
old crony
pal
pard
pardner
partner
playfellow
playmate
roommate
schoolfellow
schoolmate
individual
mortal
person
somebody
someone
soul
legitimation
pollywog
struggle