Hazard vs Pollution

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

Hazard

Top 3,000 (common)C1noun

Pollution

Top 1,000 (very common)A2noun
Most common: Pollution
 HazardPollution
Pronunciation🇬🇧 /["/ˈhæzəd/"]/🇺🇸 /["/ˈhæzərd/"]/🇬🇧 /["/pəˈluːʃn/"]/🇺🇸 /["/pəˈluːʃn/"]/
MeaningSomething that can cause harm or danger.Dirty things in the air, water, or land that make them unhealthy.
ExampleThe slippery floors are a serious hazard in the factory.The pollution in the city has made the air quality very poor.
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 1,000 (very common)
CEFR levelC1A2
Part of speechnounnoun
Collocationsbig, great, major, cause, create, pose, hazard for, hazard to, exposure to a hazardair, atmospheric, environmental, cause, create, emit, level, abatement, control, the cost of pollution, the effects of pollution, a risk of pollution, air, atmospheric, environmental, cause, create, emit, level, abatement, control, the cost of pollution, the effects of pollution, a risk of pollution, air, atmospheric, environmental, cause, create, emit, level, abatement, control, the cost of pollution, the effects of pollution, a risk of pollution
Antonymssafety, securitypurity, cleanliness
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 'pollute,' which is the verb form., Using it in singular when it can refer to multiple types or instances., Overgeneralizing; for example, saying all bad things are pollution.
Usage notesUse '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 discussions about the environment or health. Avoid in casual chats unless discussing related issues. More common in scientific or media contexts.

Frequently asked questions: Hazard vs Pollution

What's the difference between Hazard and Pollution?

Hazard: Something that can cause harm or danger. Pollution: Dirty things in the air, water, or land that make them unhealthy.

Which is more common: Hazard and Pollution?

Pollution is the most common in everyday English.

Are Hazard and Pollution the same CEFR level?

Hazard: C1, Pollution: A2 on the CEFR scale.

Can I use Hazard and Pollution interchangeably?

Not always. Hazard and Pollution 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.

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