Words formed from any letters in shreeks plus optional blank

t -

terse₅

there₇

these₇

three₇

trees₅

treks₉

tress₅

u -

users₆

usher₈

v -

veers₉

verse₉

w -

weeks₁₂

where₁₀

y -

yerks₁₁

yeses₇

z -

zerks₁₈