“RUTIN” is a valid word. — 5 points Scrabble

runa score in baseball made by a runner touching all four bases safely
nutusually large hard-shelled seed
tina silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
urna large vase that usually has a pedestal or feet
ruta groove or furrow (especially one in soft earth caused by wheels)
rin
tui
nita luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
tuna large cask especially one holding a volume equivalent to 2 butts or 252 gals

itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
ina unit of length equal to one twelfth of a foot
unan organization of independent states formed in 1945 to promote international peace and security
tia light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
nuthe 13th letter of the Greek alphabet
utthe local time at the 0 meridian passing through Greenwich, England; it is the same everywhere

RUTIN