Filth vs Pollution

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

Filth

Top 5,000 (fairly common)

Pollution

Top 1,000 (very common)A2noun
Most common: Pollution
 FilthPollution
Pronunciation🇬🇧 //fɪlθ//🇺🇸 //fɪlθ//🇬🇧 /["/pəˈluːʃn/"]/🇺🇸 /["/pəˈluːʃn/"]/
MeaningVery dirty or something disgusting.Dirty things in the air, water, or land that make them unhealthy.
ExampleThe house was covered in filth after the party.The pollution in the city has made the air quality very poor.
RegisterNeutralNeutral
How commonTop 5,000 (fairly common)Top 1,000 (very common)
CEFR level-A2
Part of speechnoun
Collocationsmoral filth, filth and grime, filth of povertyair, 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
Antonymscleanliness, puritypurity, cleanliness
Common mistakesConfusing 'filth' with 'litter'., Using 'filth' only for physical dirt; it can refer to moral issues too., Using 'filth' in overly formal contexts.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 'filth' for referring to dirt or moral corruption. More common in written contexts. Avoid 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.

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Filth

Frequently asked questions: Filth vs Pollution

What's the difference between Filth and Pollution?

Filth: Very dirty or something disgusting. Pollution: Dirty things in the air, water, or land that make them unhealthy.

Which is more common: Filth and Pollution?

Pollution is the most common in everyday English.

Can you show an example of each?

Filth: The house was covered in filth after the party. Pollution: The pollution in the city has made the air quality very poor.

Can I use Filth and Pollution interchangeably?

Not always. Filth 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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