“AVAUNT” is a valid word. — 9 points Scrabble

vanany creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts)
nutusually large hard-shelled seed
anamother of the ancient Irish gods; sometimes identified with Danu
tana browning of the skin resulting from exposure to the rays of the sun
ava
antsocial insect living in organized colonies; characteristically the males and fertile queen have wings during breeding season; wingless sterile females are the workers
vata tax levied on the difference between a commodity's price before taxes and its cost of production
tauthe 19th letter of the Greek alphabet
utaa reptile genus of Iguanidae
tuna large cask especially one holding a volume equivalent to 2 butts or 252 gals
vau
tav

ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
anan associate degree in nursing
naa silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
unan organization of independent states formed in 1945 to promote international peace and security
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
aaa dry form of lava resembling clinkers
nuthe 13th letter of the Greek alphabet
utthe local time at the 0 meridian passing through Greenwich, England; it is the same everywhere

AVAUNT