backfire
boomerang
comeback
counter
counterattack
counterblast
counterblow
counterfire
counterinsurgency
countermeasure
counterrevolution
counterstep
defense
exchange
give-and-take
interchange
reciprocation
recoil
reply
retaliation
retort
return
altarpiece
and
bee-keeper
bestseller
cannonading
contraindication
counter-attack
countywide
cross-fire
crosscourt
derailment
derisory
dissuasion
escalade
fusilade
gradualism
highly-customizable
inarticulateness
inebriate
injectible
iphone-killer
off-gassing
open-armed
pulse-pounding
quarter-circle
sea-bathing
sea-power
search-engine
sell-out
side-pee
slighdy
spalling
stage
steede
superiority
texting
thought
tragi-comedy
turning point
upheaving
upswept
water-to-binder