“VISITOR” is a valid word. — 10 points Scrabble

visitthe act of going to see some person or place or thing for a short time
riotsa public act of violence by an unruly mob
trois
visora piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face
torii
triosthe cardinal number that is the sum of one and one and one
rotis
tirossomeone new to a field or activity
torsithe body excluding the head and neck and limbs

sorta category of things distinguished by some common characteristic or quality
riota public act of violence by an unruly mob
irisplants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
stira prominent or sensational but short-lived news event
toria ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
triothe cardinal number that is the sum of one and one and one
rotsa state of decay usually accompanied by an offensive odor
roti
torsa prominent rock or pile of rocks on a hill
soria spore-producing structure in certain lichens and fungi
tirosomeone new to a field or activity
orts

to
itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
ishave the quality of being; (copula, used with an adjective or a predicate noun)
sothe syllable naming the fifth (dominant) note of any musical scale in solmization
ora state in northwestern United States on the Pacific
sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
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
osa mouth or mouthlike opening

VISITOR