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

auditan inspection of the accounting procedures and records by a trained accountant or CPA

quitput an end to a state or an activity
quidthe basic unit of money in Great Britain and Northern Ireland; equal to 100 pence
quadone of four children born at the same time from the same pregnancy
quai
ditaevergreen tree of eastern Asia and Philippines having large leathery leaves and small green-white flowers in compact cymes; bark formerly used medicinally
adita nearly horizontal passage from the surface into a mine
daut
qaid
duit

aida resource
tada slight amount or degree of difference
tauthe 19th letter of the Greek alphabet
duitwo items of the same kind
ditthe shorter of the two telegraphic signals used in Morse code
utaa reptile genus of Iguanidae
tui
qua
ait
qatthe leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant

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
ida state in the Rocky Mountains
ada public promotion of some product or service
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
qi
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
utthe local time at the 0 meridian passing through Greenwich, England; it is the same everywhere

DIQUAT