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

ductsa bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

dustfine powdery material such as dry earth or pollen that can be blown about in the air
busta complete failure
cutsa share of the profits
studa man who is virile and sexually active
cubsan awkward and inexperienced youth
ducta bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
budsa partially opened flower
buts
stuba short piece remaining on a trunk or stem where a branch is lost
tubsa relatively large open container that you fill with water and use to wash the body
scudthe act of moving along swiftly (as before a gale)
scuta short erect tail
dubsthe new sounds added by dubbing
cudsfood of a ruminant regurgitated to be chewed again

butand nothing more
cuta share of the profits
busa vehicle carrying many passengers; used for public transport
buda partially opened flower
tuba relatively large open container that you fill with water and use to wash the body
suba large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States
cuban awkward and inexperienced youth
dubthe new sounds added by dubbing
cudfood of a ruminant regurgitated to be chewed again
uts

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
utthe local time at the 0 meridian passing through Greenwich, England; it is the same everywhere

SUBDUCT