Words formed from any letters in iffiness plus optional blank

t -

teff₁₀

tens₅

ties₄

tiff₁₀

tine₅

tins₅

u -

suns₆

uses₅

v -

vein₉

vies₈

vine₉

vise₈

w -

wens₈

wife₁₀

wine₈

wins₈

wise₇

wiss₇

y -

syne₇

yens₇

yins₇

z -

zein₁₄

zins₁₄