J.C. Jesus Christus ("Jesus Christ")
J.C.D. Juris Canonici Doctor, Juris Civilis Doctor
J.D. Juris Doctor ("Doctor of Law")
J.M.J. Jesus, Maria, Joseph
J.U.D. Juris Utriusque Doctor ("Doctor of Both Laws" Civil and Canon)
J.U.L. Juris Utriusque Licentiatus ("Licentiate of Both Laws")
jazz 
iassiaca musica -ae f
JD Juris Doctor, Doctor iuris
jeep gepicus carrus -us m.
jet pyraulocineticus *aeróplanum [jet aircraft]
Jo., Joann. Joannes ("John")
jooule iulium -ii n. (phys.)
journal of cultural heritage ephemeris traditionis culturalis
joystick subst. manipulus,i m.
Jud. Judicium ("Judgment")
jump salire 2. subst. saltus,us m.
juniorato iunioratus -us m
Jur. Juris
K |
K. (Kal.) Kalendae -as | Care, Carus, Cara | Carissimus[a
K.B.M. Karissimo Bene Merenti
Kal. Kalendae -as
kamikaze voluntarius sui interemptor
Kanake homo deductus ex ultimis gentibus
kaputt fractus, perditus
kaputter Typ homo perditus
karaté caratica lucta
Kegelspiel coniludium -i n
kekaz (agg.) simpatico/a , divertente, spassoso/a, originale, insolito. Esempio: Enrico č un tipo troppo kekaz !! -Kekaz 'sto gioco!!
Kent Cantium -ii
key clavis -is f
keyboard claviatura -ae f
Kiev Kiovia -ae
Killer sicarius -ii m; percussor -ňris m
kimono kimonum -i n
kiwi grossularia -ae f Sinensis (bot.)
