“GESSOES” is a valid word. — 8 points Scrabble

esses
gessogypsum or plaster of Paris spread on a surface to make it suitable for painting or gilding (or a surface so prepared)
ogeesa molding that (in section) has the shape of an S with the convex part above and the concave part below
segos

goesa time for working (after which you will be relieved by someone else)
seesthe seat within a bishop's diocese where his cathedral is located
egosan inflated feeling of pride in your superiority to others
geesa unit of force equal to the force exerted by gravity; used to indicate the force to which a body is subjected when it is accelerated
esesthe compass point midway between east and southeast
oses
sego
segs
ogeea molding that (in section) has the shape of an S with the convex part above and the concave part below

seethe seat within a bishop's diocese where his cathedral is located
geea unit of force equal to the force exerted by gravity; used to indicate the force to which a body is subjected when it is accelerated
egoan inflated feeling of pride in your superiority to others
sosan internationally recognized distress signal in radio code
ess
seg
ose
oes

sothe syllable naming the fifth (dominant) note of any musical scale in solmization
goa time for working (after which you will be relieved by someone else)
esa radioactive transuranic element produced by bombarding plutonium with neutrons
osa mouth or mouthlike opening
oe

GESSOES