Dictionary

1killer

noun kill·er \ˈki-lər\

: a person or thing that kills someone or something

: something that is very difficult

Full Definition of KILLER

1
:  one that kills
3
a :  one that has a forceful, violent, or striking impact
b :  one that is extremely difficult to deal with

Examples of KILLER

  1. Heart disease is the leading killer of both men and women.
  2. The chemical is used as a weed killer.

First Known Use of KILLER

15th century

2killer

adjective

: causing death or destruction

: very impressive or appealing

: very difficult

Full Definition of KILLER

1
:  strikingly impressive or effective <a killer smile> <a killer résumé>
2
:  extremely difficult to deal with <a killer fastball>; also :  causing death or devastation <a killer tornado>

Examples of KILLER

  1. <killer viruses that claimed millions of lives>
  2. <a killer exercise program guaranteed to whip you into shape>

First Known Use of KILLER

1951
KILLER Defined for Kids

1killer

noun kill·er \ˈki-lər\

Definition of KILLER for Kids

:  someone or something that takes the life of a person or animal

2killer

adjective

Definition of KILLER for Kids

1
:  very impressive or effective <a killer smile>
2
:  very difficult <a killer exam>
3
:  causing death or ruin <a killer tornado>
July 02, 2015
apprehension Hear it
comprehension or the fear of future evil
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