flak (n.)
- abuse
- aggressiveness
- animadversion
- artillery
- aspersion
- battery
- bellicosity
- belligerence
- bickering
- blame
- cannon
- carping
- cavil
- censure
- combativeness
- condemnation
- contentiousness
- criticism
- disapprobation
- disapproval
- dissension
- dissent
- dissidence
- exception
- faction
- faultfinding
- fire
- firepower
- firing
- flack
- gunfight
- gunfire
- gunplay
- hairsplitting
- hit
- imputation
- irascibility
- irritability
- knock
- litigiousness
- musketry
- nit
- obloquy
- ordnance
- partisanship
- priggishness
- pugnacity
- quarrelsomeness
- quibble
- rap
- reflection
- shellfire
- shooting
- shrewishness
- slam
- stricture
- swipe
