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.
- hieroglyphical
- hieroglyphically
- hierogram
- hierolatry
- hierology
- hierophant
- hierophantic
- hifalutin
- hi-fi
- Higgins, Michael D.
- higgle
- higgledy-piggledy
- higgler
- Higgs boson
- Higgs field
- higgsino
- Higgs mechanism
- Higgs particle
- Higgs phenomenon
- high
- high altar
- high-altitude
- high and dry
- high and low
- high and mightiness