someone who causes the death of a person or animal

[ Syn: slayer ]

the causal agent resulting in death; heart disease is the biggest killer in the United States

[ Syn: cause of death ]

a difficulty that is hard to deal with; that exam was a real killer'

predatory black-and-white toothed whale with large dorsal fin; common in cold seas

[ Syn: killer whale , orca , grampus , sea wolf , orcinus orca ]