“CAHOOT” is a valid word. — 11 points Scrabble

coatan outer garment that has sleeves and covers the body from shoulder down; worn outdoors
chatan informal conversation
oathprofane or obscene expression usually of surprise or anger
taco(ethnic slur) offensive term for a person of Mexican descent
hoota loud raucous cry (as of an owl)
chao
cootslate-black slow-flying birds somewhat resembling ducks
tachmeasuring instrument for indicating speed of rotation
cohofatty pinkish flesh of small salmon caught in the Pacific and Great Lakes

tooto a degree exceeding normal or proper limits
hotused of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning
oohexpress admiration and pleasure by uttering `ooh' or `aah'
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
hatheaddress that protects the head from bad weather; has shaped crown and usually a brim
taoan adherent of any branch of Taoism
cota sheath worn to protect a finger
coothe sound made by a pigeon
hao10 hao equal 1 dong in Vietnam
oot
oatannual grass of Europe and North Africa; grains used as food and fodder (referred to primarily in the plural: `oats')
thoa branch of the Tai languages
oho
ocaSouth American wood sorrel cultivated for its edible tubers

to
ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
oha midwestern state in north central United States in the Great Lakes region
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
hoa trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite

CAHOOT