| COPRISONERS | • coprisoners n. Plural of coprisoner. • COPRISONER n. a fellow-prisoner. |
| IMPRISONERS | • imprisoners n. Plural of imprisoner. • IMPRISONER n. one who imprisons. |
| INSPIRATORS | • inspirators n. Plural of inspirator. • INSPIRATOR n. a kind of injector for forcing water by steam. |
| INTERPOSERS | • interposers n. Plural of interposer. • INTERPOSER n. one who interposes. |
| PATRONISERS | • patronisers n. Plural of patroniser. • PATRONISER n. one who patronises, also PATRONIZER. |
| PERIASTRONS | • periastrons n. Plural of periastron. • PERIASTRON n. that point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter. |
| PERVERSIONS | • perversions n. Plural of perversion. • PERVERSION n. the action of perverting. |
| PROGRESSING | • progressing v. Present participle of progress. • PROGRESS v. to move forward. |
| PROGRESSION | • progression n. The act of moving from one thing to another. • progression n. The act of moving forward or proceeding in a course; motion onward. • progression n. (Mathematics) A sequence obtained by adding or multiplying each term by a constant. |
| PROSEMINARS | • proseminars n. Plural of proseminar. • PROSEMINAR n. a course of study like a graduate seminar but often open to advanced students. |
| PROTRUSIONS | • protrusions n. Plural of protrusion. • PROTRUSION n. the act of protruding. |
| REPRESSIONS | • repressions n. Plural of repression. • REPRESSION n. the act of repressing. |
| RESORPTIONS | • resorptions n. Plural of resorption. • RESORPTION n. the act of resorbing, esp. of a mineral by rock magma. |
| RIPSNORTERS | • ripsnorters n. Plural of ripsnorter. • RIPSNORTER n. something extraordinary. |
| SPRINGFORMS | • springforms n. Plural of springform. |
| SPRINGWORTS | • SPRINGWORT n. a root thought to be magical, perhaps mandrake. |