| PASTELISTS | • pastelists n. Plural of pastelist. • PASTELIST n. an artist who works in pastel, also PASTELLIST. |
| PLASTISOLS | • plastisols n. Plural of plastisol. • PLASTISOL n. a suspension of powdered resin in a liquid plasticizer, convertible by heat into a solid plastic. |
| POLITESSES | • politesses n. Plural of politesse. • POLITESSE n. (French) courteous formality, politeness. |
| POSSIBLEST | • possiblest adj. (Nonstandard) superlative form of possible: most possible. • POSSIBLE adj. that can be done. |
| SIDESPLITS | • sidesplits n. Plural of sidesplit. • side-splits n. Plural of side-split. • SIDESPLIT n. a split-level house having floors raised half a level on one side thus having an upper and lower basement and an upper and lower main floor. |
| SIMPLISTES | • SIMPLISTE n. (French) someone who tends to oversimplify. |
| SLAPSTICKS | • slapsticks n. Plural of slapstick. • SLAPSTICK n. comedy stressing farce and horseplay. |
| SLEEPSUITS | • sleepsuits n. Plural of sleepsuit. • SLEEPSUIT n. a baby's all-in-one garment for sleeping in. |
| SLIMPSIEST | • slimpsiest adj. Superlative form of slimpsy: most slimpsy. • SLIMPSY adj. flimsy, also SLIMSY. |
| SLIPSHEETS | • slipsheets n. Plural of slipsheet. • slip␣sheets n. Plural of slip sheet. • SLIPSHEET n. a sheet of paper that is interleaved between freshly pressed sheets. |
| SOLIPSISTS | • solipsists n. Plural of solipsist. • SOLIPSIST n. one who practises solipsism, the belief that the self is all that exists. |
| SPILOSITES | • spilosites n. Plural of spilosite. • SPILOSITE n. a spotted slate, formed by contact metamorphism. |
| SPIRALISTS | • spiralists n. Plural of spiralist. • SPIRALIST n. someone engaged in spiralism; loosely, an ambitious person. |
| SPIRITLESS | • spiritless adj. Lacking energy, drive, motivation or emotion. Enervated. • SPIRITLESS adj. lacking animation or courage. |
| SPLASHIEST | • splashiest adj. Superlative form of splashy: most splashy. • SPLASHY adj. given to splashing. |
| SPLITTISMS | • SPLITTISM n. advocating the withdrawal of a group from a large centralized body. |
| SPLITTISTS | • splittists n. Plural of splittist. • SPLITTIST n. one advocating the withdrawal of a group from a large centralized body. |
| SPRITSAILS | • spritsails n. Plural of spritsail. • SPRITSAIL n. a sail extended by a sprit. |
| STRIPELESS | • stripeless adj. Without stripes. • STRIPELESS adj. without a stripe. |
| STYLOPISES | • STYLOPISE v. to paralyse a host, also STYLOPIZE. |