killer

1 of 2

noun

kill·​er ˈki-lər How to pronounce killer (audio)
1
: one that kills
2
3
a
: one that has a forceful, violent, or striking impact
b
: one that is extremely difficult to deal with

killer

2 of 2

adjective

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 in a Sentence

Noun Heart disease is the leading killer of both men and women. The chemical is used as a weed killer. Adjective killer viruses that claimed millions of lives a killer exercise program guaranteed to whip you into shape
Recent Examples on the Web
Noun
In Idaho, the scheduled execution of serial killer Thomas Eugene Creech in February was halted after a medical team unsuccessfully tried eight times to establish an IV. CBS News, 5 Apr. 2024 Shasta Groene, who survived being kidnapped by a serial killer, is asking for her community’s help once more after losing her home in a fire. Angel Saunders, Peoplemag, 5 Apr. 2024 Songs about serial killers, Superman, and religion all co-existing. Jeff Ihaza, Rolling Stone, 5 Apr. 2024 In a profile of a killer who worships art for art’s sake, these allusions make sense. Judy Berman, TIME, 4 Apr. 2024 Santa Clara County District Attorney Jeff Rosen this week cited Newsom’s order in seeking to have condemned killers in cases county prosecutors handled resentenced to life without parole. John Woolfolk, The Mercury News, 4 Apr. 2024 The director says that Netflix has no plans to take that franchise to international local markets, explaining that the streamer is looking for subjects, serial killers or otherwise, that viewers around the world have heard of so that the program will resonate with them. Addie Morfoot, Variety, 3 Apr. 2024 His killer, Eric R. Holder Jr., received a sentence of 60 years to life in prison after being found guilty of first-degree murder in February 2023. Michael Saponara, Billboard, 1 Apr. 2024 Now, Laura has seven days to identify the killer and reverse the course of fate. Declan Gallagher, EW.com, 31 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'killer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

Noun

15th century, in the meaning defined at sense 1

Adjective

1951, in the meaning defined at sense 1

Time Traveler
The first known use of killer was in the 15th century

Dictionary Entries Near killer

Cite this Entry

“Killer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/killer. Accessed 20 Apr. 2024.

Kids Definition

killer

1 of 2 noun
ˈkil-ər
1
: one that kills
2

killer

2 of 2 adjective
1
: strikingly impressive or effective
a killer smile
2
: extremely difficult
a killer exam
also : causing death or devastation
a killer tornado

More from Merriam-Webster on killer

Last Updated: - Updated example sentences
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