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

mimesisthe imitative representation of nature and human behavior in art and literature
missiesa young woman

missesa young woman
missisinformal term of address for someone's wife
immies
isseis
seismsshaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity

mimesan actor who communicates entirely by gesture and facial expression
semisone of the two competitions in the next to the last round of an elimination tournament
issei
mises
seismshaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity
sisesa female person who has the same parents as another person

missa young woman
messa state of confusion and disorderliness
sims
mimean actor who communicates entirely by gesture and facial expression
semione of the two competitions in the next to the last round of an elimination tournament
seis
mise
ismsa belief (or system of beliefs) accepted as authoritative by some group or school
memsthe 13th letter of the Hebrew alphabet

sisa female person who has the same parents as another person
sim
ems
mis
sei
memthe 13th letter of the Hebrew alphabet
ess
mim
isma belief (or system of beliefs) accepted as authoritative by some group or school

ishave the quality of being; (copula, used with an adjective or a predicate noun)
mea state in New England
ema quad with a square body
mma metric unit of length equal to one thousandth of a meter
midestruction of heart tissue resulting from obstruction of the blood supply to the heart muscle
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

SEISMISM