“DEXIES” is a valid word. — 14 points Scrabble

sidea place within a region identified relative to a center or reference location
diesa small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers
seeda small hard fruit
exes
idesin the Roman calendar: the 15th of March or May or July or October or the 13th of any other month
dees
eide

seethe seat within a bishop's diocese where his cathedral is located
diea small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers
sixthe cardinal number that is the sum of five and one
sexactivities associated with sexual intercourse
dee
dex
ids
disgod of the underworld; counterpart of Greek Pluto
sei
xis

ishave the quality of being; (copula, used with an adjective or a predicate noun)
dea Mid-Atlantic state; one of the original 13 colonies
edimpotence resulting from a man's inability to have or maintain an erection of his penis
ida state in the Rocky Mountains
exa man who was formerly a certain woman's husband
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
xithe cardinal number that is the sum of ten and one

DEXIES