“REESTS” is a valid word. — 6 points Scrabble

treesa tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
steeran indication of potential opportunity
resetdevice for resetting instruments or controls
restssomething left after other parts have been taken away
esterformed by reaction between an acid and an alcohol with elimination of water
seersa person with unusual powers of foresight
tressa hairdo formed by braiding or twisting the hair
tersebrief and to the point; effectively cut short
seres
stere
reest
ersesany of several related languages of the Celts in Ireland and Scotland

restsomething left after other parts have been taken away
treea tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
seesthe seat within a bishop's diocese where his cathedral is located
setsa group of things of the same kind that belong together and are so used
seera person with unusual powers of foresight
teesthe starting place for each hole on a golf course
rees
sere(used especially of vegetation) having lost all moisture
esesthe compass point midway between east and southeast
erstat a previous time
retea network of intersecting blood vessels or intersecting nerves or intersecting lymph vessels
retsplace (flax, hemp, or jute) in liquid so as to promote loosening of the fibers from the woody tissue
sers

seethe seat within a bishop's diocese where his cathedral is located
seta group of things of the same kind that belong together and are so used
ere
teethe starting place for each hole on a golf course
ser
resa widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells
ess
ree
ers
retplace (flax, hemp, or jute) in liquid so as to promote loosening of the fibers from the woody tissue

era trivalent metallic element of the rare earth group; occurs with yttrium
rea rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
et
esa radioactive transuranic element produced by bombarding plutonium with neutrons

REESTS