Words formed from any letters in obstruent plus optional blank

a -

unbar₁₀

urase₆

urate₆

urban₁₀

ureas₆

ursae₆

usnea₇

c -

uncos₁₀

d -

under₈

uredo₇

g -

ungot₉

urges₈

h -

usher₈

i -

unite₇

units₇

untie₇

urine₇

uteri₆

l -

unlet₈

m -

umbos₁₂

unmet₁₀

p -

upset₉

s -

users₆

v -

vents₁₀

verbs₁₂

verso₉

verst₉

verts₉

vertu₁₀

voter₉

votes₉

w -

unsew₁₀

wonts₉

worse₈

worst₈

worts₈

wrens₉

wrest₈

wrote₈

wurst₉

x -

unbox₁₇

unsex₁₄

xerus₁₃

y -

yetts₇

yores₇

yourn₉

yours₈

youse₈

yurts₈

z -

zebus₁₈

zeros₁₄

zoner₁₅

zones₁₅