| PANSPERMISTS | • panspermists n. Plural of panspermist. • PANSPERMIST n. a believer in panspermism. |
| PROMPTNESSES | • promptnesses n. Plural of promptness. • PROMPTNESS n. the state of being prompt. |
| PROPHETESSES | • prophetesses n. Plural of prophetess. • PROPHETESS n. a woman who is a prophet. |
| PROSPECTLESS | • prospectless adj. Without prospects; futureless. • PROSPECTLESS adj. without a prospect. |
| PROSPECTUSES | • prospectuses n. Plural of prospectus. • PROSPECTUS n. the outline of any plan submitted for public approval, particularly of a literary work or of a joint-stock concern. |
| PROVOSTSHIPS | • provostships n. Plural of provostship. • PROVOSTSHIP n. the office of provost. |
| SHOWSTOPPERS | • showstoppers n. Plural of showstopper. • show-stoppers n. Plural of show-stopper. • show␣stoppers n. Plural of show stopper. |
| SIDESTEPPERS | • sidesteppers n. Plural of sidestepper. • SIDESTEPPER n. one who sidesteps. |
| SPHEROPLASTS | • spheroplasts n. Plural of spheroplast. • SPHEROPLAST n. a bacterium or yeast cell that is modified, as by enzymatic action, so that there is partial loss of the cell wall and increased osmotic sensitivity. |
| SPINSTERSHIP | • spinstership n. The state of being a spinster. • SPINSTERSHIP n. the state of being a spinster, also SPINSTERDOM, SPINSTERHOOD. |
| SPORTSPERSON | • sportsperson n. Someone who plays sport, regardless of gender. • SPORTSPERSON n. a sportsman or sportswoman. |
| SPORTSPLEXES | • sportsplexes n. Plural of sportsplex. |
| SUPERSCRIPTS | • superscripts n. Plural of superscript. • superscripts v. Third-person singular simple present indicative form of superscript. • SUPERSCRIPT n. something written above. |
| SUPPRESSANTS | • suppressants n. Plural of suppressant. • SUPPRESSANT n. a drug that tends to suppress or reduce in intensity rather than eliminate something. |
| TRAPPINESSES | • TRAPPINESS n. the quality of being trappy, full of traps. |