killer

Primary Meanings of killer

1.
n
someone who causes the death of a person or animal
2.
n
predatory black-and-white toothed whale with large dorsal fin; common in cold seas
Full Definitions of killer
1

n someone who causes the death of a person or animal

Synonyms:
slayer
Examples:
John Wilkes Booth
United States actor and assassin of President Lincoln (1838-1865)
Jack the Ripper
an unidentified English murderer in the 19th century
Lee Harvey Oswald
United States assassin of President John F. Kennedy (1939-1963)
Types:
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executioner, public executioner
an official who inflicts capital punishment in pursuit of a warrant
eradicator, exterminator, terminator
someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)
choker, garroter, garrotter, strangler, throttler
someone who kills by strangling
liquidator, manslayer, murderer
a criminal who commits homicide (who performs the unlawful premeditated killing of another human being)
poisoner
someone who kills with poison
regicide
someone who commits regicide; the killer of a king
felo-de-se, suicide
a person who kills himself intentionally
assassin, assassinator, bravo
a murderer (especially one who kills a prominent political figure) who kills by a surprise attack and often is hired to do the deed
butcher
a brutal indiscriminate murderer
cutthroat
someone who murders by cutting the victim's throat
electrocutioner
an executioner who uses electricity to kill the condemned person
fratricide
a person who murders their brother or sister
gun, gun for hire, gunman, gunslinger, hired gun, hit man, hitman, shooter, torpedo, triggerman
a professional killer who uses a gun
hangman
an executioner who hangs the condemned person
hatchet man, iceman
a professional killer
headman, headsman
an executioner who beheads the condemned person
infanticide
a person who murders an infant
mass murderer
a person who is responsible for the deaths of many victims in a single incident
murderess
a woman murderer
parricide
someone who kills his or her parent
ripper
a murderer who slashes the victims with a knife
serial killer, serial murderer
someone who murders more than three victims one at a time in a relatively short interval
Type of:
individual, mortal, person, somebody, someone, soul
a human being

n the causal agent resulting in death

“heart disease is the biggest killer in the United States”
Synonyms:
cause of death
Type of:
causal agency, causal agent, cause
any entity that produces an effect or is responsible for events or results

n a difficulty that is hard to deal with

“that exam was a real killer
Type of:
difficulty
a factor causing trouble in achieving a positive result or tending to produce a negative result
2

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

Synonyms:
Orcinus orca, grampus, killer whale, orca, sea wolf
Type of:
dolphin
any of various small toothed whales with a beaklike snout; larger than porpoises

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