| OPTICIST | • opticist n. One who studies optics. • OPTICIST n. one engaged in the study of light and vision. |
| OPTIMIST | • optimist n. A person who expects a favourable outcome. • optimist n. A believer in optimism. • Optimist n. (Nautical) A small centre-board sailing dinghy designed to train and introduce young children into sailing. |
| PETITIOS | • PETITIO n. a short form of petitio principii, a form of fallacious reasoning in which the conclusion has been assumed in the premises; begging the question. |
| PIETISTS | • pietists n. Plural of pietist. • Pietists n. Plural of Pietist. • PIETIST n. a person characterized by or professing (often affected or exaggerated) piety. |
| PITHIEST | • pithiest adj. Superlative form of pithy: most pithy. • PITHY adj. full of pith, to the point. |
| PITTINGS | • pittings n. Plural of pitting. • PITTING n. an arrangement of cavities or depressions. |
| PITTITES | • pittites n. Plural of pittite. • Pittites n. Plural of Pittite. • PITTITE n. (obsolete) someone who frequents the pit of a theatre. |
| PITUITAS | • PITUITA n. (archaic) phlegm, mucus, also PITUITE. |
| PITUITES | • PITUITE n. (archaic) phlegm, mucus, also PITUITA. |
| RISPETTI | • rispetti n. Plural of rispetto. • RISPETTO n. (Italian) a type of Italian folksong with 8-line stanzas. |
| SPITTIER | • SPITTY adj. marked with saliva. |
| SPITTING | • spitting v. Present participle of spit. • spitting n. (Chiefly archaic, medicine) expectoration. • spitting n. (Uncountable) An appearance on the surface of melted silver or platinum allowed to cool slowly, jets… |
| STIPITES | • stipites n. Plural of stipes. • STIPES n. (Latin) a slender supporting part of a plant, also STIPE. |
| TIDYTIPS | • tidytips n. Any of the flowering plants of the genus Layia in the daisy family; they are erect annual herbs with… • TIDYTIPS n. a California composite plant, the flower of which has yellow rays tipped with white. |
| TIPPIEST | • tippiest adj. Superlative form of tippy: most tippy. • TIPPY adj. (slang) in the height of fashion. |
| TIPSIEST | • tipsiest adj. Superlative form of tipsy: most tipsy. • TIPSY adj. slightly drunk. |
| TRIPIEST | • TRIPY adj. like tripe, worthless, also TRIPEY. |