abstract
act
attacked
attract
backed
blacked
compact
contract
cracked
detract
diffract
distract
enact
exact
extract
fact
hacked
impact
inexact
intact
interact
jacked
lacked
overreact
packed
pact
protract
racked
react
redact
reenact
repacked
retract
sacked
slacked
smacked
snacked
stacked
subtract
tacked
tact
tracked
tract
transact
unpacked
whacked
wracked