“POLIS” is a valid word. — 7 points Scrabble

lipseither of two fleshy folds of tissue that surround the mouth and play a role in speaking
slipa socially awkward or tactless act
soilthe state of being covered with unclean things
slopwet feed (especially for pigs) consisting of mostly kitchen waste mixed with water or skimmed or sour milk
oilsa slippery or viscous liquid or liquefiable substance not miscible with water
siloa cylindrical tower used for storing silage
lispa speech defect that involves pronouncing `s' like voiceless `th' and `z' like voiced `th'
piso
poisHawaiian dish of taro root pounded to a paste and often allowed to ferment
polsa person active in party politics
soliany activity that is performed alone without assistance
lopscut off from a whole

oila slippery or viscous liquid or liquefiable substance not miscible with water
lipeither of two fleshy folds of tissue that surround the mouth and play a role in speaking
sipa small drink
ops(Roman mythology) goddess of abundance and fertility; wife of Saturn; counterpart of Greek Rhea and Cybele of ancient Asia Minor
sola colloid that has a continuous liquid phase in which a solid is suspended in a liquid
psia unit of pressure
pola person active in party politics
lis
lopcut off from a whole
poiHawaiian dish of taro root pounded to a paste and often allowed to ferment
soppiece of solid food for dipping in a liquid
pis

ishave the quality of being; (copula, used with an adjective or a predicate noun)
sothe syllable naming the fifth (dominant) note of any musical scale in solmization
lia soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
lo
sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
op
pithe ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
osa mouth or mouthlike opening

POLIS