Is 'euthanize' only for animals?

No, while most commonly used for animals in everyday language, it is also the correct verb for the act of performing euthanasia on a human in medical and ethical contexts.

What's the difference between 'euthanize' and 'put to sleep'?

'Euthanize' is more formal and clinical. 'Put to sleep' (or 'put down') is a common, gentler euphemism used primarily for pets in everyday conversation.

Is it correct to say 'the illness euthanized him'?

No, that is incorrect. Euthanize requires an intentional agent (a person). You should say 'He died from the illness' or 'He was euthanized by a doctor because of the illness'.

Can 'euthanize' be used in a non-literal way?

Yes, it can be used metaphorically in business or tech contexts (e.g., 'They decided to euthanize the failing product line'), though this is informal and somewhat darkly humorous.

euthanize

Low

UK/ˈjuːθənaɪz/US/ˈjuːθənaɪz/

Formal, Technical, Medical

My Flashcards

Definition

Meaning

To kill an animal or a person who is very ill or injured in a painless way, usually by a veterinarian or medical professional, to end suffering.

The act of intentionally ending a life to relieve incurable suffering or an unbearable condition; can sometimes be used in broader metaphorical contexts (e.g., ending a failing project).

Linguistics

Semantic Notes

Primarily used in veterinary and medical/ethical contexts. The agent is typically a professional. The patient is typically non-human, though in medical ethics it refers to humans. The action is presented as merciful.

Dialectal Variation

British vs American Usage

Differences

British English strongly prefers the spelling 'euthanise'. American English uses 'euthanize'. The concept is identical.

Connotations

The term is heavily value-laden, often associated with debates on animal welfare and medical ethics (euthanasia). It can be emotionally charged.

Frequency

More common in American English due to its frequent use in veterinary contexts and public discourse. UK usage is similar but slightly less frequent in media.

Vocabulary

Collocations

strong

humanely euthanizehave to euthanizedecided to euthanizevet will euthanize

medium

euthanize the animaleuthanize a peteuthanize a patientlegal to euthanize

weak

sadly euthanizeeuthanize tomorroweuthanize because of

Grammar

Valency Patterns

[Subject: person/authority] euthanize [Object: animal/patient] ([Adverbial: for + reason / because of + condition])[Subject: animal/patient] be euthanized ([Adverbial: by + agent])

Vocabulary

Synonyms

Strong

carry out euthanasia onperform euthanasia on

Neutral

put downput to sleep

Weak

end the suffering ofend the life of

Vocabulary

Antonyms

reviveresuscitatesavetreat

Usage

Context Usage

Business

Rare, except in specific industries like veterinary services or pharmaceuticals. Metaphorically: 'The board decided to euthanize the unprofitable division.'

Academic

Common in bioethics, veterinary science, and medical law papers discussing end-of-life decisions.

Everyday

Used when discussing the difficult decision regarding a severely ill or injured pet. Often emotionally loaded.

Technical

Standard term in veterinary medicine and human medical ethics for the deliberate act of ending a life to relieve suffering.

Examples

By Part of Speech

verb

British English

The vet had to euthanise the old cat to end its pain.
After much deliberation, the family agreed to have their dog euthanised.

American English

The shelter may have to euthanize animals that are not adopted.
It is illegal to euthanize a person without explicit consent in most states.

Examples

By CEFR Level

The sick dog was very old, so the vet said we should euthanize it.
It is a sad decision to euthanize a pet.

The family made the difficult choice to have their severely injured horse humanely euthanized.
Debates continue about whether doctors should be allowed to euthanize terminally ill patients.

The ethical framework governing when a veterinarian may euthanize an animal varies considerably between jurisdictions.
Proponents argue that individuals should have the autonomy to be euthanized if they are suffering from a degenerative, incurable disease.

Learning

Memory Aids

Mnemonic

Think: 'Youth' (sounds like 'eu') + 'than' + 'eyes' (sounds like 'ize'). A 'youth' looks into the 'eyes' of an old, suffering pet and makes the 'than' (sooner than later) decision to end its pain humanely.

Conceptual Metaphor

DEATH IS SLEEP (e.g., 'put to sleep'), MERCY IS A GIFT (ending suffering is an act of kindness), SUFFERING IS A BURDEN (euthanasia removes the burden).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

Avoid direct translation of Russian 'усыпить' (literally 'to make sleep') in formal English contexts; 'euthanize/put down' is more precise. 'Умертвить' is too harsh and general. The English term is specific to a context of mercy.

Common Mistakes

Misspelling: 'euthanise' (UK) vs. 'euthanize' (US). Using it casually or for humans without appropriate gravity. Incorrect passive construction: 'The dog was euthanized by cancer' (should be 'because of cancer' or 'due to cancer').

Practice

Quiz

Fill in the gap

After the accident, the wildlife centre had no choice but to the badly injured fox.

Multiple Choice

Which of the following is the LEAST appropriate synonym for 'euthanize' in a formal veterinary report?

FAQ

Frequently Asked Questions

: No, while most commonly used for animals in everyday language, it is also the correct verb for the act of performing euthanasia on a human in medical and ethical contexts.
: 'Euthanize' is more formal and clinical. 'Put to sleep' (or 'put down') is a common, gentler euphemism used primarily for pets in everyday conversation.
: No, that is incorrect. Euthanize requires an intentional agent (a person). You should say 'He died from the illness' or 'He was euthanized by a doctor because of the illness'.
: Yes, it can be used metaphorically in business or tech contexts (e.g., 'They decided to euthanize the failing product line'), though this is informal and somewhat darkly humorous.