assassin

noun
as*sas*sin \ ə-ˈsa-sᵊn \
circa 1520{ds||2||}
  • a person who commits murder; especially : one who murders a politically prominent person either for money or from fanatical adherence to a cause
  • a person belonging to a Shia Muslim sect during the time of the Crusades whose members were notorious for murdering prominent enemies

assassin bug

noun
assassin bug \
1890
  • any of a family (Reduviidae) of bugs that are usually predatory on insects though some (such as a kissing bug) suck the blood of mammals —called also reduviid
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