(n) jar
(P)
(n) jug
(n) jazz
(P)
(n) (comp) Java
jabber
(n) jab (esp. in boxing)
(P)
(n) jam
(P)
(n) (1) Java
(2) java (coffee)
(exp) (col) I understand (from roger)
(n) (abbr) sport similar to ball-toss game played in schools (All Japan Tamaire)
(n) (uk) peafowl (inc. the male peacock, female peahen, and young peachick)
(n) jerk
(P)
(n) jersey
(n) (1) clash
bang
(int) (2) Ta-dah!
(n) jive
(n) (abbr) gyro
gyroscope
gyrocompas
(n) jaguar
(P)
(n) (uk) potato (Solanum tuberosum)
(P)
(n) (1) jazz dance
(2) jaggies
(n) (1) jacket
(2) book jacket
dust cover
(n) jacket picture (i.e. of a record)
(n) just
perfect
exact
(P)
(n) judder
(n) jack
(P)
(n) jack
(P)
(n) judge
(P)
(n) (vulg) (X) Japanese person
Jap
(n) (comp) JADMA
(n) (comp) jabber
(n) Japan
(P)
(n) jammer