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

cogsa subordinate who performs an important but routine function
sagopowdery starch from certain sago palms; used in Asia as a food thickener and textile stiffener
scagstreet names for heroin
goasa state of southwestern India; a former Portuguese colony
ocasSouth American wood sorrel cultivated for its edible tubers

agogone by; or in the past
gasthe state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container
cosratio of the adjacent side to the hypotenuse of a right-angled triangle
goaa state of southwestern India; a former Portuguese colony
sacan enclosed space
soua former French coin of low denomination; often used of any small amount of money
coga subordinate who performs an important but routine function
saga shape that sags
sau
ocaSouth American wood sorrel cultivated for its edible tubers

sothe syllable naming the fifth (dominant) note of any musical scale in solmization
goa time for working (after which you will be relieved by someone else)
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
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
osa mouth or mouthlike opening
aga soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

GUACOS