Hazard vs Threat

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

Hazard

Top 3,000 (common) C1 noun

Threat

Top 1,000 (very common) B2 noun

Most common: Threat

	Hazard	Threat
Pronunciation	🇬🇧 /["/ˈhæzəd/"]/ 🇺🇸 /["/ˈhæzərd/"]/	🇬🇧 //θrɛt// 🇺🇸 //θrɛt//
Meaning	Something that can cause harm or danger.	A person or thing that can cause harm or danger.
Example	The slippery floors are a serious hazard in the factory.	The storm posed a serious threat to the coastal town.
Register	Neutral	Neutral
How common	Top 3,000 (common)	Top 1,000 (very common)
CEFR level	C1	B2
Part of speech	noun	noun
Collocations	big, great, major, cause, create, pose, hazard for, hazard to, exposure to a hazard	credible threat, imminent threat, serious threat, direct threat
Antonyms	safety, security	safety, security
Common mistakes	'Hazard' confused with 'hazards' in plural form., 'Hazard' used incorrectly as a verb instead of a noun., Mixing up 'hazard' with 'risk' when describing dangers.	Confused with 'threaten', which is a verb., Overuse 'threat' when referring to minor inconveniences.
Usage notes	Use 'hazard' when discussing risks or dangers, especially in safety contexts. It's appropriate for formal writing and discussions but may feel too technical in casual conversation.	Used in both formal and informal contexts; often refers to danger from people or situations.

See it in real clips

The Lord Of The Rings › The Fellowship Of The Ring

A shadow and a threat has been growing in my mind.

Sherlock › S1 E1

I would make some sort of threat,

...but with the Joker's threat, they don't have an option.

The Lord Of The Rings › The Fellowship Of The Ring

A shadow and a threat has been growing in my mind.

Sherlock › S1 E1

I would make some sort of threat,

Threat

Frequently asked questions: Hazard vs Threat

What's the difference between Hazard and Threat?

Hazard: Something that can cause harm or danger. Threat: A person or thing that can cause harm or danger.

Which is more common: Hazard and Threat?

Threat is the most common in everyday English.

Which is more advanced: Hazard and Threat?

Hazard is the highest level, at C1, on the CEFR scale.

Are Hazard and Threat the same CEFR level?

Hazard: C1, Threat: B2 on the CEFR scale.

What part of speech are Hazard and Threat?

Hazard: noun, Threat: noun.

Can you show an example of each?

Hazard: The slippery floors are a serious hazard in the factory. Threat: The storm posed a serious threat to the coastal town.

Can I use Hazard and Threat interchangeably?

Not always. Hazard and Threat 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.