“BETISE” is a valid word. — 8 points Scrabble

bitesa wound resulting from biting by an animal or a person
beetsbiennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop
besetannoy continually or chronically

bestthe supreme effort one can make
bitea wound resulting from biting by an animal or a person
sitethe piece of land on which something is located (or is to be located)
bitsa small piece or quantity of something
tiesneckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front
betsthe money risked on a gamble
beesany of numerous hairy-bodied insects including social and solitary species
beetbiennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop
teesthe starting place for each hole on a golf course
bisea dry cold north wind in southeastern France

seethe seat within a bishop's diocese where his cathedral is located
bita small piece or quantity of something
sitbe seated
its
seta group of things of the same kind that belong together and are so used
betthe money risked on a gamble
tieneckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front
beeany of numerous hairy-bodied insects including social and solitary species
tis
teethe starting place for each hole on a golf course
sei
bis
siba person's brother or sister

itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
ishave the quality of being; (copula, used with an adjective or a predicate noun)
bea light strong brittle grey toxic bivalent metallic element
et
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
esa radioactive transuranic element produced by bombarding plutonium with neutrons
bia heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
tia light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite

BETISE