There are 17 words that end with 'lack'.
lack | alack | black |
clack | flack | plack |
slack | pollack | eyeblack |
nonblack | shellack | antiblack |
boneblack | bootblack | lampblack |
shoeblack | superflack | |
Note: These 17 words that end with 'lack' are found from the USA & Canada version of the tournament Scrabble word list.