Words formed from any letters in freeness plus optional blank

i -

sris₄

o -

sorn₅

t -

teen₅

tees₄

tens₅

tern₅

tree₄

tref₇

u -

suer₅

sues₅

suns₆

sure₅

surf₈

urns₆

user₅

uses₅

v -

veer₈

vees₈

w -

ween₈

weer₇

wees₇

wens₈

were₇

wren₈

y -

syne₇

yens₇

z -

zees₁₃