“JIVIEST” is a valid word. — 17 points Scrabble

visitthe act of going to see some person or place or thing for a short time
jivesa style of jazz played by big bands popular in the 1930s; flowing rhythms but less complex than later styles of jazz
iviesOld World vine with lobed evergreen leaves and black berrylike fruits

sitethe piece of land on which something is located (or is to be located)
tiesneckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front
vesta man's sleeveless garment worn underneath a coat
jetsan airplane powered by one or more jet engines
jesta humorous anecdote or remark intended to provoke laughter
jivea style of jazz played by big bands popular in the 1930s; flowing rhythms but less complex than later styles of jazz
vetsa doctor who practices veterinary medicine
visea holding device attached to a workbench; has two jaws to hold workpiece firmly in place
viescompete for something; engage in a contest; measure oneself against others

sitbe seated
its
seta group of things of the same kind that belong together and are so used
tieneckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front
jetan airplane powered by one or more jet engines
veta doctor who practices veterinary medicine
tis
viecompete for something; engage in a contest; measure oneself against others
sei
vis

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)
et
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
esa radioactive transuranic element produced by bombarding plutonium with neutrons
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

JIVIEST