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.
- make someone's blood curdle
- make someone's blood run cold
- make someone's day
- make someone's eyes pop (or pop out)
- make someone's flesh crawl (or creep)
- make someone's hackles rise
- make someone's hair curl
- make someone's hair stand on end
- make someone sick
- make someone's life a misery (or make life a misery for someone)
- make someone's skin crawl
- make someone's skin crawl (or creep)
- make someone's toes curl
- make someone/thing out
- striking price
- strimmer
- Strindberg, August
- Strindbergian
- Strine
- string
- string along
- string bass
- string bean
- string bed
- string bikini