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, father, fellow, fellow student, fellow worker, first cousin, fledgling, foster brother, frater, general partner, girl friend, gossip, grandnephew, grandniece, granduncle, great-aunt, great-uncle, half brother, hobbledehoy, jailmate, kid brother, lad, laddie, manchild, master, mate, messmate, mother, muchacho, nephew, niece, nuncle, nunks, nunky, old crony, pal, pard, pardner, partner, pewmate, playfellow, playmate, pup, puppy, roommate, running mate, schoolboy, schoolfellow, schoolmate, second cousin, secret partner, shelfmate, shipmate, shopmate, side partner, sidekick, sidekicker, silent partner, sis, sissy, sister, sister-german, sistern, sleeping partner, son, sonny, sonny boy, special partner, stepbrother, stepsister, tablemate, teammate, tentmate, unc, uncle, uncs, uterine brother, watchmate, waymate, whelp, workfellow, yokefellow, yokemate, young man, youth
accompaniment, adjunct, context, appendage, appurtenance, coexistence, concomitance, company, association, companionship, partnership, copartnership, coefficiency, concomitant, accessory, coefficient, companion, buddy
, attendant, fellow, associate, friend, colleague, consort, spouse, mate, partner, co-partner, satellite, hanger on, fellow-traveller, shadow, escort, cortege, attribute, accompanying, concomitant, fellow, twin, joint, associated with, coupled with, accessory, attendant, obbligato, with, withal, together with, along with, in company with, hand in hand, side by side, cheek by jowl, cheek by jole, arm in arm, therewith, herewith, and, together, in a body, collectively, noscitur a sociis, virtutis fortuna comes.
auxiliary, recruit, assistant, adjuvant, adjutant, ayudante, coaid, adjunct, help, helper, help mate, helping hand, midwife, colleague, partner, mate, confrere, cooperator, coadjutor, coadjutrix, collaborator, ally, friend, confidant, fidus Achates, pal, buddy
, alter ego, confederate, accomplice, complice, accessory, accessory after the fact, particeps criminis, socius criminis, aide-de-camp, secretary, clerk, associate, marshal, right-hand, right-hand man, Friday, girl Friday, man Friday, gopher, gofer, candle- holder, bottle-holder, handmaid, servant, puppet, cat's-paw, jackal, tool, dupe, stooge, ame damnee, satellite, adherent, votary, sectarian, secretary, seconder, backer, upholder, abettor, advocate, partisan, champion, patron, friend at court, mediator, angel (theater, entertainment), friend in need, Jack at a pinch, deus ex machina, guardian angel, tutelary genius.
friend, friend of one's bosom, alter ego, best friend, bosom friend, soulmate, fast friend, amicus, usque ad aras, fidus Achates, persona grata, acquaintance, neighbor, next-door neighbor, casual acquaintance, nodding acquaintance, wellwisher, favorer, fautor, patron, Mecaenas, tutelary saint, good genius, advocate, partisan, sympathizer, ally, friend in need, comrade, mate, companion, familiar, confrere, comrade, camarade, confidante, intimate, old crony, crony, chum, pal, buddy
, bosom buddy
, playfellow, playmate, childhood friend, bedfellow, bedmate, chamber fellow, associate, colleague, compeer, schoolmate, schoolfellow, classfellow, classman, classmate, roommate, fellow-man, stable companion, best man, maid of honor, matron of honor, compatriot, fellow countryman, countryman, shopmate, fellow-worker, shipmate, messmate, fellow companion, boon companion, pot companion, copartner, partner, senior partner, junior partner, Arcades ambo Pylades and Orestes Castor and Pollux, Nisus and Euryalus, Damon and Pythias, par nobile fratrum, host, Amphitryon, Boniface, guest, visitor, prot_eg_e, amici probantur rebus adversis, ohne bruder kann man leben nicht ohne Freund, best friend, my well-spring in the wilderness, conocidos muchos amigos pocos, friend more divine than all divinities, vida sin amigo muerte sin testigo.