“SLIPUP” is a valid word. — 10 points Scrabble

pupila learner who is enrolled in an educational institution
pulis100 puls equal 1 afghani in Afghanistan
pulpsany soft or soggy mass
pilusany of the cylindrical filaments characteristically growing from the epidermis of a mammal

plusa useful or valuable quality
lipseither of two fleshy folds of tissue that surround the mouth and play a role in speaking
slipa socially awkward or tactless act
pulpany soft or soggy mass
pupsyoung of any of various canines such as a dog or wolf
pipsa disease of poultry
lispa speech defect that involves pronouncing `s' like voiceless `th' and `z' like voiced `th'
puli100 puls equal 1 afghani in Afghanistan
puls100 puls equal 1 afghani in Afghanistan

lipeither of two fleshy folds of tissue that surround the mouth and play a role in speaking
sipa small drink
ups
pipa disease of poultry
pupyoung of any of various canines such as a dog or wolf
supa small amount of liquid food
psia unit of pressure
lis
pusthe tenth month of the Hindu calendar
piu
pis
pul100 puls equal 1 afghani in Afghanistan

ishave the quality of being; (copula, used with an adjective or a predicate noun)
upraise
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
lia soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
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
pithe ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

SLIPUP