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killer Line breaks: kill¦er
Pronunciation: /ˈkɪlə/

Definition of killer in English:


1A person or thing that kills: there’s a killer on the loose
More example sentences
  • Despite his protestations of innocence, many in jail believed he was the ruthless killer of a defenceless teenager.
  • To us a mosquito bite is an inconvenience, but for families in Africa it can be a killer.
  • Two generations ago, for example, diabetes was a killer.
literary slayer
dated homicide
cause of death, fatal/deadly illness, destroyer, threat to life, menace, plague, scourge, peril
2 informal An extremely difficult or unpleasant thing: the shift system was a killer
More example sentences
  • Those 300 squats are a killer but my glutes appreciate them.
  • Deflation is a killer for anyone with a mortgage.
  • Cash-flow is a killer for many businesses that might have a fantastic product or service, but can't afford to bring it to market on their upfront costs and keep operations running.
2.1A formidably impressive person or thing: it s the zoom lens that makes this camera an absolute killer
More example sentences
  • He has beaten his demons and has kicked out a killer of an album.
  • The berry mimosa is a KILLER (as in good).
  • The pizza here has always been a killer.
2.2A hilarious joke.
Example sentences
  • He can take his time getting to the 'gag' bit because the audience know that when it comes it will be a killer of a punchline.
  • Those witty one-liners were killers.
  • The rabbit punchline was a killer.
3Australian /NZ informal An animal that has been selected for slaughter.


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1Denoting a person or thing that kills: a killer virus
More example sentences
  • This third-person shooter game takes place in 3 D mazes where killer robots are running loose.
  • The ultimate goal is to raise awareness and money to fund the research that could one day cure this killer disease.
  • This morning, news was breaking about a new 'killer' flu virus which has just appeared in Asia.
2 informal Extremely difficult or unpleasant: I woke up with a killer hangover
More example sentences
  • Fatty foods are the only thing that are going to cure this killer hangover.
  • With killer temperatures and a complete whiteout on area highways, traffic was at a standstill and not one hotel room in the entire city was available.
  • After another killer shift in the kitchen, I come home and listen to this and it makes me laugh.
2.1chiefly US Very impressive or effective; excellent: the soundtrack is killer a killer physique
More example sentences
  • He has a killer smile and very nice eyes.
  • The Grill specializes in delicious, simply prepared fish and salads, big drinks, and killer desserts.
  • Both dishes were totally killer!

Words that rhyme with killer

Anguilla, Aquila, Attila, Camilla, cedilla, chiller, chinchilla, driller, Drusilla, fibrillar, filler, flotilla, fulfiller, Godzilla, gorilla, griller, guerrilla, Manila, manilla, mantilla, miller, pillar, Priscilla, sapodilla, sarsaparilla, Schiller, scilla, scintilla, spiller, swiller, thriller, tiller, vanilla, vexilla, villa, Willa, willer, zorilla

Definition of killer in:

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