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

star(astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
taskany piece of work that is undertaken or attempted
ratsany of various long-tailed rodents similar to but larger than a mouse
artsstudies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills)
tsara male monarch or emperor (especially of Russia prior to 1917)
sark
katsthe leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant
kart
tarsany of various dark heavy viscid substances obtained as a residue
arks(Judaism) sacred chest where the ancient Hebrews kept the two tablets containing the Ten Commandments
skat

askinquire about
artthe products of human creativity; works of art collectively
satthe seventh and last day of the week; observed as the Sabbath by Jews and some Christians
ratany of various long-tailed rodents similar to but larger than a mouse
katthe leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant
ark(Judaism) sacred chest where the ancient Hebrews kept the two tablets containing the Ten Commandments
tskutter `tsk,' `tut,' or `tut-tut,' as in disapproval
tarany of various dark heavy viscid substances obtained as a residue
rasthe network in the reticular formation that serves an alerting or arousal function
tas
ska
ars
kas

ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
asa very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
ara colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
kaunknown god; an epithet of Prajapati and Brahma

KARTS