This page contains a glossary to the language of A.K. Dewdney's book about a scientifically-detailed 2D universe, The Planiverse. Please add to it if you think something is missing.
Ajem Kollosh: Arde's single continent, pp.27-28
Alak: the one-dimensional Ardean equivalent of the two-dimensional Terran board game of Go (p.203). You can play Alak online.
Ara Hoot: small Ardean fish, p.56. See also Kobor Hoot.
Arde: the home planet of the Nsana and the setting for The Planiverse, p.28
Balat Srar: edible Ardean shellfish that lives at the bottom of the ocean, pp.39, 52
Bar Prala: mushroom-like plant that grows at the bottom of a body of water, p.145
Bes Sallur: huge flying snake, p.212
bwiki: Ardean musical instrument like a cross between a drum and a violin, pp.174-175
Dahl Radam: high central plateau of Ajem Kollosh, 800 km wide, p.31
day: Arde's day/night cycle is about 31 hours and 25 minutes long, p.29
Fiddib Har: Arde's single ocean, p.27
fsad: unit of length, about 4.2 km (p.94). See also Yendred unit.
hadd: Planiversal iron (from Arabic hadid)
hadd-hatr: "ply-iron", unique Planiversal material used to build machines, p.167
Hadmsh Hab: algae-like aquatic creatures, p.145
hadrashar: Ardean chlorophyll, p.55
hatr: plywood-like material made by gluing layers together (usually made from Basla?), p.167
hbool: rope made by gluing Basla fibers together. Because an approximately one-dimensional strip of material can function as either a rope or a board in the Planiverse depending on how flexible it is, hbool is made in much the same way as hatr. P.165.
hrabx: Ardean oxygen or air, p.37
Ilma Kabosh: edible Ardean plant that grows on the sea like a water lily, p.55
Is Felblt: capital of Punizla, p.78
jeb: Punizlan coin made of jebb, p.94
jebb: glassy, quartzlike rock quarried on Dahl Radam, p.167
jebb-hatr: "ply-quartz", used in Ardean windows, p.167
Jirri Basla: common edible tuberous plant, p.70. The Ardean potato?
Kobor Hoot: large Ardean fish, p.56. See also Ara Hoot.
ma eerveh: Ardean musical instrument like bagpipes, pp.174-175
Mil Dwili: giant carnivorous aquatic plant, p.63
musmar: Ardean musical instrument like a thumb piano, pp.174-175
Nagas: Arde's sister planet, which also orbits Shems, p.28
Nsana: the two-dimensional sapient alien beings who inhabit Arde. Arde's equivalent of humans. Yendred is a Nsana, and so are the other people he meets on Arde during his journey. (p.17)
Punizla: western region of Ajem Kollosh, 1000 km wide, p.31
punl: west, p.28 (Dewdney says punl means "east", but this is probably a typo.)
Ra Nifid: large predator dwelling underground, related to the Nsana by evolution. Some Nsana keep smaller Ra Nifid as pets. (pp.114-119)
Shems: Arde's sun, p.28
Tahti Neml: small, burrowing creature, p.75
Tba: honorific like "Professor" or "Doctor"? (pp.131-158)
Vanizla: eastern region of Ajem Kollosh, 1000 km wide, p.31
vanl: east, p.28 (Dewdney says vanl means "west", but this is probably a typo.)
Yendred: The protagonist of The Planiverse. He is lives on Arde and is a Nsana. Note that his name is almost "Dewdney" spelled backwards.
Yendred unit: Yendred's height, by convention the same as Dewdney's (175 cm). Everything in the book is measured in Yendred units onscreen and converted to metric. (p.31)
Zar Hyet: small, threadlike, aquatic creatures (akin to worms?), p.145