Words formed from any letters in backpacks plus optional blank

e -

spae₇

spec₁₀

i -

spic₁₀

spik₁₁

l -

slab₈

slap₈

m -

spam₁₀

n -

snap₈

span₈

o -

soak₈

soap₇

sock₁₁

r -

spar₇

s -

spas₇

t -

spat₇

stab₇

tabs₇

tack₁₁

taka₈

tapa₇

taps₇

task₈

u -

suba₈

suck₁₂

upas₈

v -

vacs₁₁

vasa₈

w -

swab₁₀

swap₁₀

wabs₁₀

wack₁₄

waps₁₀

wasp₁₀

y -

spay₉

yack₁₃

yaks₁₀

yaps₉

z -

spaz₁₆

zaps₁₆