Hello vs Hey you

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

Hello

High-frequency chunkA1

Hey you

InformalTop 2,000 (common)
Most formal: HelloMost common: Hello
 HelloHey you
Pronunciation🇬🇧 /["/həˈləʊ/"]/🇺🇸 /["/həˈləʊ/"]/🇬🇧 //heɪ juː//🇺🇸 //heɪ ju//
MeaningA word used to greet someone.A casual way to get someone's attention.
ExampleHello John, how are you?Hey you! Over here!
RegisterNeutralInformal
How commonHigh-frequency chunkTop 2,000 (common)
CEFR levelA1-
Collocationssay hello, hello there, hello everyone, hello friend, hello worldHey you, guess what, Hey you, come here, Hey you, look over there
Antonymsgoodbye, farewell-
Common mistakesUsing 'hello' in overly formal situations., Confusing 'hello' with 'hi' for informal contexts., Not varying the greeting based on time of day.Using it as a formal greeting., Assuming everyone will find it friendly., Not using context-appropriate intonation.
Usage notesUse 'hello' in most situations when greeting someone. It's suitable for both formal and informal contexts. Avoid using in very formal settings where a greeting like 'good afternoon' might be more appropriate.Use 'Hey you' among friends or informal situations. Avoid in formal contexts or when addressing someone you're not familiar with.

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Hello
Hey you

Frequently asked questions: Hello vs Hey you

What's the difference between Hello and Hey you?

Hello: A word used to greet someone. Hey you: A casual way to get someone's attention.

Which is more formal: Hello and Hey you?

Hello is the most formal of these.

Which is more common: Hello and Hey you?

Hello is the most common in everyday English.

Can you show an example of each?

Hello: Hello John, how are you? Hey you: Hey you! Over here!

Can I use Hello and Hey you interchangeably?

Not always. Hello and Hey you 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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