(n) skipper
(P)
(n) Skinner box (i.e. an operant conditioning chamber)
(n) skimming (illegally copying credit cards with a swipe device)
(n) scat
(n) (obsc) scab (i.e. a strikebreaker)
(n) scanner
(P)
(n) scuba
self-contained under-water breathing apparatus
(P)
(n) skillful
(n) skillet
(n) skin care
(P)
(n) masking
(n) maraschino (ita:)
(n) mosquito
(n) monoski
(n) lambskin
(n) rescue
(P)
(n) water skiing
(n) (comp) access key
(n) Eskimo dog
(n) (comp) S3
(n) oilskin
(n) calfskin
(n) cross kick (rugby)
(n) (1) glass fiber ski
glass fibre ski
(2) grass ski
(n) goatskin
(n) surf ski
(n) sand skiing
(n) sheep skin
(n) sealskin
(n) ski-wear