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to kill off

to kill off

82 4.8
Destroy almost all members of a group, like a type of animal or product
  • phrasal verb
  • /kɪl ɔf/
: eliminar
  • Nothing less than war would do to kill off slavery.
  • kill off most
  • threaten to kill off

So those imposters have to kill off the crew mates while they do their tasks.

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Examples

  • If we kill off the wild, then we're killing off a part of our souls.

  • Oystering on the Bay wasn't what it had been, not since parasites had killed off so many.

    Fiction book (2001)
  • So to kill off the human race would be very, very difficult.

  • If a group of guys are being killed off one after the other?

    Fiction book (1994)
  • Besides, the man was planning on killing off the entire population of New York City, if not the world.

    Fiction book (2000)
  • Australian scientists say climate change has officially killed off its first mammal species.

  • But increased use of pesticides killed off the fish, eliminating these important benefits.

    Academic text (2003)
  • Worldwide, the temperature dropped precipitously, killing off most of the plants and animals that had survived the initial cataclysm.

    Fiction book (1992)
  • If you think about this, Ivermectin is a medication that kills off parasites.

  • Climate change has killed off many species, threatening biodiversity.

Synonyms

to get rid of
vsto kill off
∞ 1.6

To remove or throw away something you do not want

implies removing almost all members, often with complete destruction
to eliminate
vsto kill off
  • NSFW
769 3.4

Remove or kill something completely so it is gone

stresses removal of nearly all members, often with total effect
to kill
vsto kill off
411 2.8

Stop something from working or continuing

is more focused on ending almost all members or the group's existence
to wipe out
vsto kill off
347 4.2

Destroy something so nothing is left

targets nearly all members, often ending the group entirely
to eradicate
vsto kill off
84 6.6

Remove something harmful completely, for example a disease or pest

often applies to removing groups or populations, not only harmful items
to decimate
vsto kill off
64 7.5

To destroy a large part of a group or population

aims for most or all members rather than a large portion
to exterminate
vsto kill off
  • NSFW
61 6.9

To destroy something completely, often on purpose

is used more for removing an entire group rather than things
to annihilate
vsto kill off
  • NSFW
58 7.5

To destroy completely, often killing many people

focuses on ending most or all members rather than single acts
to disband
vsto kill off
43 4.3

To stop being a group, for example a band or committee

refers more to removing members broadly rather than dissolving structure only
to nuke
vsto kill off
  • Informal
43 7.4

To destroy something completely, often using a nuclear bomb

is more general for ending most members, not only by weapons
to pick off
vsto kill off
  • Offensive
36 8.0

Shoot and kill opponents one by one from a hidden place

works on nearly all members collectively rather than selective removal
to knock off
vsto kill off
  • NSFW
29 9.9

Kill someone as part of a crime

is broader, applying to ending most or all members often completely
to weed out
vsto kill off
27 3.8

To remove unwanted people or things from a group

targets most or all members rather than only undesired ones
to snuff out
vsto kill off
24 7.7

Put an end to something or to someone's life

usually refers to removing most or all members rather than single endings
to extinguish
vsto kill off
  • Offensive
12 7.7

Kill an entire group of people or animals so none are left

is used for removing most or all group members rather than single cases
to liquidate
vsto kill off
  • Offensive
12 9.3

To kill someone who is a threat

focuses on removing almost all members, not only single threats
to destroy
vsto kill off
2 4.6

Put an animal to death because it is seriously ill or dangerous

is broader, meaning removal of most or all members, not only animals
to terminate with extreme prejudice
vsto kill off
  • Offensive
1 9.9

To kill someone secretly and without pity

describes removal of almost all members without naming covert methods

Antonyms

∞ 1.0

To keep someone or something safe from harm

504 3.4

To keep people and things safe from harm or change

How Eliminated

to wipe out
347 4.2
to kill off
82 4.8
to thin out
  • Informal
12 3.5
to reduce
∞ 1.6

Surface Forms

kill off infinitive
killed off past
killed off past participle
killing off present participle
kills off third person singular

Morphology

kill + off

The meaning 'to destroy or eliminate' is directly derivable from 'kill' (to cause death) combined with the particle 'off', which adds a completive/removal sense (i.e., kill completely or eliminate). This verb+particle composition is compositional and cross-linguistically common, so a B1 learner who knows the constituent meanings would likely infer the MWE meaning.

Etymology

Kill off paints a clear picture: you kill members of a group and off shows they are finished or gone. So it means 'to destroy or remove almost all of something'.