Words formed from any letters in precheck plus optional blank

s -

seer₄

sere₄

skee₈

skep₁₁

spec₁₀

t -

thee₆

tree₄

trek₈

v -

veep₁₁

veer₈

w -

week₁₁

weep₁₀

weer₇

were₇

whee₉

y -

yech₁₁

yerk₁₀

z -

zerk₁₇