hit squad 
noun
A team of assassins.And for as long as there have been informers, there have been hit squads and assassins ready to liquidate them....
- But if it's a team, a hit squad, there will be others - there probably has been already.
- It has ordered CIA hit squads to assassinate a foreign head of state.
- ruleless
- rule-maker
- rule-making
- rule nisi
- rule of engagement
- rule of law
- rule of the road
- rule of three
- rule of thumb
- rule-proving
- ruler
- ruler cult
- rulered
- ruleress
- rule-right
- rulering
- ruler joint
- rulership
- ruler-straight
- Rules
- Rules Committee
- ruleship
- rules-maker
- rule something out (or in)
- rule-staff