| PIS | • pis n. Plural of pi. • PIs n. Plural of PI. • PI v. to mix type indiscriminately. |
| ASPIS | • aspis n. A type of round shield borne by ancient Greek soldiers. • aspis n. (Archaic) An asp or generic venomous snake. • aspis n. (Palynology) A prominent ring of thickened exine around a pore on a pollen grain. |
| IMPIS | • impis n. Plural of impi. • IMPI n. (Zulu) a regiment of Zulu warriors. |
| KEPIS | • kepis n. Plural of kepi. • KEPI n. (French) a legionnaire's cap. |
| LAPIS | • lapis n. Ellipsis of lapis lazuli. • LAPIS n. (Latin) a stone, as in set phrases such as 'lapis philosophicus', philosopher's stone. |
| PIPIS | • pipis n. Plural of pipi. • PIPI n. (Maori) an edible shellfish of Australasia. |
| TAPIS | • tapis n. A tapestry. • tapis n. Carpeting. • tapis n. (Historical) The cover of a council table. |
| TIPIS | • tipis n. Plural of tipi. • TIPI n. (Native American) a conical tent, also TEEPEE, TEPEE. |
| TOPIS | • topis n. Plural of topi. • TOPI n. (Hindi) a tropical pith helmet, also TOPEE. |
| CUSPIS | • cuspis n. A point; a sharp end. • CUSPIS n. (Latin) a point e.g. the horn of the moon, also CUSP. |
| HAPPIS | • happis n. Plural of happi. • HAPPI n. (Japanese) a loose Japanese coat. |
| JASPIS | • jaspis n. Obsolete form of jasper. • Jaspis prop.n. (Fandom slang) The ship of characters LazuliJasper and LapisLazulifrom the Steven Universe series. • JASPIS n. jasper, also JASP. |
| KALPIS | • kalpis n. A kind of Ancient Greek water jug. • KALPIS n. (Greek) a Greek water-jar. |
| OKAPIS | • okapis n. Plural of okapi. • OKAPI n. an animal like a giraffe but with a short neck and smaller. |
| SAMPIS | • sampis n. Plural of sampi. • SAMPI n. (Greek) a supposed name of a Greek numerical character representing 900. |
| ILLUPIS | • ILLUPI n. (Tamil) the mahwa tree, also ILLIPE. |
| SCAMPIS | • scampis n. Plural of scampi. • SCAMPI n. (Italian) crustaceans of the genus Nephrops, often fried in breadcrumbs. |
| SINOPIS | • sinopis n. The pigment sinopia. • SINOPIS n. (Latin) a reddish-brown pigment used for one of the preparatory drawings of a fresco, obtained from sinopite, an iron ore, also SINOPIA. |
| NEPHROLEPIS | • NEPHROLEPIS n. any fern of the genus Nephrolepis, some being grown as house plants. |
| SHAGANAPPIS | • shaganappis n. Plural of shaganappi. |