“TAXITIC” is a valid word. — 16 points Scrabble

atticfloor consisting of open space at the top of a house just below roof; often used for storage
tacitimplied by or inferred from actions or statements

taxia car driven by a person whose job is to take passengers where they want to go in exchange for money
tactconsideration in dealing with others and avoiding giving offense
tititree of low-lying coastal areas of southeastern United States having glossy leaves and racemes of fragrant white flowers
ixiaa monocotyledonous genus of the family Iridaceae

acta legal document codifying the result of deliberations of a committee or society or legislative body
catfeline mammal usually having thick soft fur and no ability to roar: domestic cats; wildcats
taxcharge against a citizen's person or property or activity for the support of government
titeither of two soft fleshy milk-secreting glandular organs on the chest of a woman
tattastelessness by virtue of being cheap and vulgar
tica local and habitual twitching especially in the face
att
ait

itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
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
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

TAXITIC