Compounds of ー
- (n) cylinder
(P) - (n) shin guard
- (n) synthase
- (n) sympathy
- (n) (comp) gzip
- (n) (abbr) denim jacket (wasei: jeans jumper)
- (n) genius
- (n) jeepney
- (n) G-mark
Good design mark - (n) (comp) Siemens
- (n) gelato (Italian ice cream) (ita:)
- (n) jealousy
(P) - (n) gender
(P) - (n) geology
- (n) JIS mark
- (n) Givenchy
(P) - (n) gymkhana
- (n) Jim Crow
- (n) jerky
- (n) jargon
- (n) jersey
(P) - (n) (comp) journal
log
(P) - (n) journey
- (n) German
- (n) Jacquard (type of loom)
- (n) jacuzzi
- (n) juggler
- (n) (comp) Java2
- (n) junkie
(P) - (n) jacket
jumper
(P)