Killing vs Murder

When to use each in English, with meaning, register, and examples.

Killing

Top 2,000 (common)B1noun

Murder

FormalTop 5,000 (fairly common)B1noun
Most formal: MurderMost common: Killing
 KillingMurder
Pronunciation🇬🇧 /["/ˈkɪlɪŋ/"]/🇺🇸 /["/ˈkɪlɪŋ/"]/🇬🇧 /["/ˈmɜːdə(r)/"]/🇺🇸 /["/ˈmɜːrdər/"]/
Meaningthe act of causing someone or something to dieThe act of killing someone intentionally.
ExampleThe killing of the endangered species caused public outrage.The detective was called to solve a murder that had occurred in the quiet town.
RegisterNeutralFormal
How commonTop 2,000 (common)Top 5,000 (fairly common)
CEFR levelB1B1
Part of speechnounnoun
Collocationsbrutal, cold-blooded, deliberate, be responsible for, carry out, order, happen, occur, take place, a motive for the killingbarbaric, brutal, grisly, carry out, commit, perpetrate, happen, occur, take place, victim, suspect, detective
Antonymssaving, protecting, revivingsave, protect, preserve
Common mistakesConfused with 'murder' which is a legal term for unlawful killing., Using it in overly casual contexts where seriousness is required., Mixing up the noun and verb forms.Confusing with 'manslaughter', which has different legal implications., Using it inappropriately as a joke or in casual conversation., Confusing 'murder' with 'kill', which can be both intentional and unintentional.
Usage notesUsed in both literal and metaphorical contexts. In formal settings, be cautious as it can be sensitive. Informal use may also refer to 'doing very well' in a situation (e.g., 'killing it').Used mainly in legal contexts or serious discussions. Avoid in casual conversations due to its heavy implications. Not appropriate for light-hearted or humorous contexts.

Frequently asked questions: Killing vs Murder

What's the difference between Killing and Murder?

Killing: the act of causing someone or something to die Murder: The act of killing someone intentionally.

Which is more formal: Killing and Murder?

Murder is the most formal of these.

Which is more common: Killing and Murder?

Killing is the most common in everyday English.

Are Killing and Murder the same CEFR level?

Killing: B1, Murder: B1 on the CEFR scale.

Can I use Killing and Murder interchangeably?

Not always. Killing and Murder are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.