Stuff vs What things

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

Stuff

InformalTop 1,000 (very common)B1noun

What things

Top 2,000 (common)
Most formal: What thingsMost common: Stuff
 StuffWhat things
Pronunciation🇬🇧 /["/stʌf/"]/🇺🇸 /["/stʌf/"]/🇬🇧 //wɒt θɪŋz//🇺🇸 //wɑt θɪŋz//
MeaningThings or objects.Items or objects that you are talking about.
ExampleI need to pack all my stuff for the trip.What things do you like to do on weekends?
RegisterInformalNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB1-
Part of speechnoun
Collocationsa bunch of stuff, some stuff, stuff to dowhat things to bring, what things to consider, what things are available
Antonymsnothing, emptiness-
Common mistakesUsing 'stuff' as a singular noun., Confusing 'stuff' with more specific vocabulary., Overusing 'stuff' instead of being specific.Using 'what thing' when referring to multiple items instead of 'what things'., Inappropriately combining with verbs, e.g., 'What things can you do?' instead of 'What things do you do?', Confusing with 'which things', which is more specific.
Usage notesUsed in casual conversation to refer to things in general. Avoid in formal writing or speeches.Use 'what things' to inquire about items in various contexts, suitable in both casual and formal conversations.

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Stuff
What things

Frequently asked questions: Stuff vs What things

What's the difference between Stuff and What things?

Stuff: Things or objects. What things: Items or objects that you are talking about.

Which is more formal: Stuff and What things?

What things is the most formal of these.

Which is more common: Stuff and What things?

Stuff is the most common in everyday English.

Can you show an example of each?

Stuff: I need to pack all my stuff for the trip. What things: What things do you like to do on weekends?

Can I use Stuff and What things interchangeably?

Not always. Stuff and What things 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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