Words Containing O and Ending in ACK

Making a list of words with O that end in ACK? Sounds fun. Also sounds pretty specific. A list like that could go a long way, we're sure. This complete word list is tailored to your search parameters, whether they are words with O or words that end in ACK. Or both, obviously.

13 letter words2 Words
counterattack
neurofeedback
11 letter words3 Words
biofeedback
diamondback
googlewhack
10 letter words10 Words
ahorseback
cornerback
hydrocrack
microcrack
ploughback
postattack
smokestack
soundtrack
woollyback
yellowback
9 letter words22 Words
boneblack
bootblack
cookshack
countback
crookback
crossjack
foreslack
hornwrack
horseback
knockback
8 letter words29 Words
blowback
bookrack
bootjack
coalsack
coatrack
comeback
flowback
foldback
forslack
holdback
7 letter words12 Words
cossack
cromack
hogback
hopsack
oomiack
outback
pollack
rowback
sowback
stomack