“TROWTH” is a valid word. — 12 points Scrabble

throwthe act of throwing (propelling something with a rapid movement of the arm and wrist)
worthan indefinite quantity of something having a specified value
trotha mutual promise to marry
wrothvehemently incensed and condemnatory
rowth
whort

how
whoa United Nations agency to coordinate international health activities and to help governments improve health services
twothe cardinal number that is the sum of one and one or a numeral representing this number
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
rowan arrangement of objects or people side by side in a line
rota state of decay usually accompanied by an offensive odor
towthe act of hauling something (as a vehicle) by means of a hitch or rope
tora prominent rock or pile of rocks on a hill
tota small amount (especially of a drink)
thoa branch of the Tai languages
rhothe 17th letter of the Greek alphabet
wot
ort

to
oha midwestern state in north central United States in the Great Lakes region
ora state in northwestern United States on the Pacific
ow
hoa trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
wo

TROWTH