Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
| accomplice | a person who helps another or others to do something esp. commit a crime |
| achates | a faithful friend. [The faithful friend of Aeneas (Virgil Aeneid VI. 158 etc.)]. N.B. no ACHATE*. |
| ally | one united in a common cause; (verb) to join in a common cause. |
| ami | a friend > AMIS. |
| amie | a (female) friend > AMIES. |
| amiga | (Spanish) a female friend. |
| amigo | (Spanish) a male friend. |
| amity | friendship. |
| associate | one to whom one is connected in some way; (verb) to join, connect. |
| bae | a person's sweetheart or lover. |
| bandmate | a fellow member of a band. |
| bedfellow | one who shares a bed. |
| bedmate | one who shares a bed. |
| befriend | to act as a friend to. |
| befriender | one who befriends others. |
| belamy | (Spenser) a good friend > BELAMIES. |
| bestie bezzie bezzy | a best friend. |
| blokey | matey > BLOKIER, BLOKIEST. |
| bo | fellow; pal, buddy > BOS. |
| boertjie | (S. Afr.) a friend > BOERTJIES. |
| boet | (S. Afr.) brother, chum. |
| boyf | a boyfriend. |
| boyfriend | a girl's favourite boy for the time being. |
| bredren bredrin | a close male friend > BRUS. |
| bromance | a close but not romantic or sexual relationship between two men. |
| bromantic | having the character of a BROMANCE. |
| bru | a friend > BRUS. |
| buddy | a friend; (adj.) having buds > BUDDIER, BUDDIEST; (verb) to become close friends > BUDDIES, BUDDYING, BUDDIED. |
| bunkmate | one who shares a bunk. |
| butty buttyman | a chum, comrade esp. in a coalmine. |
| cabinmate | one who shares a cabin. |
| cackermander | (dial.) a friend. |
| cahoot | partnership; as, to go in cahoot with a person. |
| camaraderie | friendship. Cf. COMRADERY. |
| cellmate | one who shares a cell with another. |
| china | (sl.) a friend. [Rhyming slang: china plate = mate]. |
| chommie | (S. Afr.) a friend. |
| chum | a friend; (verb) to become a chum > CHUMS, CHUMMING, CHUMMED. |
| chummage | the quartering of two or more persons in one room. |
| chummy | friendly > CHUMMIER, CHUMMIEST; CHUMMILY. |
| chumship | friendship. |
| classmate | one in the same class. |
| cobber | (Aust. sl.) friend, mate. |
| coinmate | a fellow inmate. |
| comate | a mate or companion. |
| compadre | a male friend or companion. [In Spanish, compadre means godfather; it is also a traditional term of reverence and friendship for a man]. |
| companion | a friend, one who keeps companay with another; (verb) to be a companion to. |
| companionate | acting as a companion. |
| companionship | the state of being a companion. |
| companing | companying, keeping company. |
| company | (verb) to keep company with. |
| compeer | an equal, a companion; (verb) to be the equal of. |
| complice | an accomplice. |
| compotation | an act of carousing in company. |
| compotator | one who drinks with another. |
| compotatory | sharing in a COMPOTATION, carousing in company. |
| comrade | a close friend. |
| comradeliness | the state of being COMRADELY. |
| comradely | like a COMRADE. |
| comradery | the spirit of comradeship; comradeship. |
| comradeship | the state of being a comrade. |
| confidant | a (male) person entrusted with knowledge of one's private affairs (orig. esp. one's love affairs) or thoughts. |
| confidante | a (female) person entrusted with knowledge of one's private affairs (orig. esp. one's love affairs) or thoughts. |
| confederate | an ally, an accomplice; (verb) to unite in a confederacy. |
| confrere | a fellow member of a fraternity; an intimate associate. |
| confrerie | a brotherhood. |
| contubernal contubernyal | living or messing together; intimate. |
| copartner | one who is jointly concerned with one or more persons in business; (verb) to act as a copartner. |
| copartnery | the state of being copartners in any undertaking. |
| copemate | a companion, an accomplice. |
| corival | a rival; also, a companion; (verb) to rival > CORIVALS, CORIVALLING, CORIVALLED. |
| corrival | a rival; also, a companion; (verb) to rival > CORRIVALS, CORRIVALLING, CORRIVALLED. |
| couzin | (S. Afr.) a friend. |
| crewmate | a member of a crew. |
| crony | a close friend. |
| cully | a pal, a mate; (verb) to cheat, deceive. |
| cullyism | the state of being a CULLY, a pal or mate. |
| cupman | a boon companion. |
| duddie | a friend or chum > DUDDIES; (adj.) ragged. |
| familiar | well-known > FAMILIARLY; (noun) a close friend or associate > FAMILIARS. |
| feare | a companion or mate. |
| fedarie federarie federary FOEDARIE | a confederate. |
| fellow | a companion; (verb) to be a companion to. |
| fellowly | in the manner of a FELLOW. |
| fellowman | a human being like oneself. |
| fellowship | the state of beign a fellow. |
| fere | a companion, a mate; (adj.) able, sound > FERER, FEREST. |
| fier | a companion > FIERS. (Previously existed only as comparative of FIE, fey). |
| fiere | a companion or mate. |
| flatmate | one who shares a flat. |
| foedarie | see FEDARIE. |
| friend | a close or intimate acquaintance; (verb) to enter into a warm association with. |
| furkid | a companion animal. |
| girlfriend | a female friend. |
| goodfellow | a jolly or boon companion. |
| goombah | (Creole) an associate or close friend. |
| gossib | a familiar friend. |
| gossip | a familiar friend; (verb) to prattle, chat. |
| gossipry | spiritual relationship or affinity; special intimacy. |
| groomsman | the attendant on a bridegroom. |
| helpmate helpmeet | a friend, companion. |
| hinnie | a sweetheart. |
| hobnob | to associate or drink familiarly together > HOBNOBS, HOBNOBBING, HOBNOBBED. |
| hobnobber | one who hobnobs. |
| hobnobby | sociable, given to hobnobbing. |
| homeboy homie | (S. Afr.) a friend; a member of a youth gang. |
| housemate | one who dwells in the same house with another. |
| intimate | a close friend, a confidant; (verb) to hint. |
| jong | (S. Afr.) a friend, often used in direct address. |
| judy | (coll.) a girl, a girl-friend > JUDIES. |
| keypal | a person with whom one regularly exchanges emails for fun. |
| kith | one's friends, neighbours, relatives: people of one's own kind. |
| labelmate | a singer or musician who records for the same company as another. |
| maik | a mate or consort, an equal. |
| marra | a Northern English form of mate. |
| mateship | friendship. |
| mate | a friend. |
| matey | a mate > MATEYS. |
| mateyness | the state of being MATEY. |
| matiness | friendliness > MATINESSES. |
| maty | (noun) a friend > MATIES; (adj.) friendly > MATIER, MATIEST; MATILY. |
| merryman | a companion > MERRYMEN. |
| messmate | one whom one shares eating facilities with. |
| mucker | a coarse person; a best friend, a mate; (verb) to hoard; to squander > MUCKERS, MUCKERING, MUCKERED. |
| neighbor | a neighbour > NEIGHBORLY; (verb) to neighbour, border on > NEIGHBORS, NEIGHBORING, NEIGHBORED. |
| neighborly | like a NEIGHBOR. |
| neighbour | a person who lives near or next door to another > NEIGHBOURLY; (verb) to live or be near > NEIGHBOURS, NEIGHBOURING, NEIGHBOURED. |
| neighborly | like a NEIGHBOUR. |
| nestmate | a bird sharing a nest with another. |
| netop | a friend, companion. |
| oppo | one's opposite number, a partner or opponent > OPPOS. |
| pal | a friend; (verb) to associate as a pal > PALS, PALLING, PALLED. |
| pally | friendly > PALLIER, PALLIEST; (verb) to become pals with. |
| palship | friendship > PALSHIPS. |
| palsy | pally, being pals > PALSIER, PALSIEST; (noun) a disease > PALSIES; (verb) to affect with palsy > PALSIES, PALSYING, PALSIED. |
| pardner | a partner, friend. |
| partner | an associate; a husband or wife; (verb) to be a partner to. |
| penfriend | a friend by correspondence. |
| pheer pheere | a companion or mate. |
| playfellow | a companion in amusements or sports; a playmate. |
| playmate | a companion in play. |
| potman | a pot companion. |
| practisant | a confederate. |
| privado | a private friend; a confidant > PRIVADOES or PRIVADOS. |
| roomie | a room-mate. |
| roommate | one with whom a room is shared. |
| schoolmate | a companion at school. |
| seatmate | one with whom one shares a seat. |
| shipmate | a fellow sailor. |
| sidekick | a close friend. |
| sociate | an associate. |
| sodalist | a member of a SODALITY, a fellowship or fraternity. |
| soulmate | a person with who one has most affinity. |
| tablemate | one who shares a table. |
| tillicum | (Am. Ind.) a friend. |
| tovarich tovarisch tovarish | (Russian) a friend, comrade. |
| unfriend | one who is not a friend. |
| wack | mate, pal; (adj.) crazy > WACKER, WACKEST. |
| wacker | mate, pal. |
| workfellow | a companion at work, a WORKMATE. |
| workmate | a companion at work, a WORKFELLOW. |
| wus | a Welsh term used for addressing a companion > WUSES (WUSSES exists as plural of WUSS). |
| yaar | (Hinglish) friend, man (as a form of address). |
| yfere | a friend, companion > YFERES. |
| yokefellow | an associate or companion in, or as in; a mate; a fellow; especially, a partner in marriage. |
| yokemate | one who shares a yoke, a yokefellow. |