“CHATCHKA” is a valid word. — 22 points Scrabble

chatan informal conversation
hackone who works hard at boring tasks
hath
haha
tackthe heading or position of a vessel relative to the trim of its sails
takathe basic unit of money in Bangladesh; equal to 100 paisa
kata
caca
tachmeasuring instrument for indicating speed of rotation
khatthe leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant
acta

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
aahexpress admiration and pleasure by uttering `ooh' or `aah'
hatheaddress that protects the head from bad weather; has shaped crown and usually a brim
aha
hah
katthe leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant

ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
ah
ha(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
kaunknown god; an epithet of Prajapati and Brahma
aaa dry form of lava resembling clinkers

CHATCHKA