“ANTITAX” is a valid word. — 14 points Scrabble

taxia car driven by a person whose job is to take passengers where they want to go in exchange for money
antia person who is opposed (to an action or policy or practice etc.)
tinta quality of a given color that differs slightly from another color
tain
anta
taxaanimal or plant group having natural relations

ainbelonging to or on behalf of a specified person (especially yourself); preceded by a possessive
taxcharge against a citizen's person or property or activity for the support of government
tina silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
anamother of the ancient Irish gods; sometimes identified with Danu
tana browning of the skin resulting from exposure to the rays of the sun
antsocial insect living in organized colonies; characteristically the males and fertile queen have wings during breeding season; wingless sterile females are the workers
titeither of two soft fleshy milk-secreting glandular organs on the chest of a woman
tattastelessness by virtue of being cheap and vulgar
nixa quantity of no importance
aniblack tropical American cuckoo
att
nita luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
ait

itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
ina unit of length equal to one twelfth of a foot
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)
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
aian agency of the United States Army responsible for providing timely and relevant and accurate and synchronized intelligence to tactical and operational and strategic level commanders
axan edge tool with a heavy bladed head mounted across a handle
aaa dry form of lava resembling clinkers
xithe cardinal number that is the sum of ten and one
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

ANTITAX