(n) Sinn Fein
(n,vs) simplify
(n) (comp) JCL
(n) Jekyll and Hyde
(n) (uk) potato (Solanum tuberosum) (lit: Jakarta potato)
(n) jazzercize
jazzercise
(exp) correct size
perfect size
(n) jack-knife
(n) jambalaya
(n) jumbo-size
(n) junior fly (weight)
(n) junior light (weight)
(n) job title
(n) super-alloy
(n) super-size
(n) superviser
(P)
(n) sweet corn
(n) sweetheart
(n) sweet home
(n) sweet potato
(n) sweet melon
(n) suite
(n) (comp) Swiss Telecom
(n,vs) switchback
(n) (comp) switch vendor
(n) (comp) interswitch signalling
(n) swing out
(n) swing jazz
(n) swing play
(n) skyjack