Words formed from any letters in dumbfounds plus optional blank

e -

use₄

l -

ulu₆

m -

umm₁₀

p -

ump₁₀

upo₇

ups₇

r -

urb₇

urd₅

urn₅

t -

ton₄

tub₇

tun₅

uts₄

w -

won₇

wos₆

wud₈

y -

yob₈

yod₆

yom₈

yon₆

you₆

yum₉