Good morning vs Hello vs Hi

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

Good morning

High-frequency chunk

Hello

High-frequency chunkA1

Hi

InformalHigh-frequency chunkA1exclamation
 Good morningHelloHi
Pronunciation🇬🇧 //ɡʊd ˈmɔːnɪŋ//🇺🇸 //ɡʊd ˈmɔrnɪŋ//🇬🇧 /["/həˈləʊ/"]/🇺🇸 /["/həˈləʊ/"]/🇬🇧 /["/haɪ/"]/🇺🇸 /["/haɪ/"]/
MeaningA friendly greeting said in the morning.A word used to greet someone.A casual way to greet someone.
ExampleGood morning! How did you sleep?Hello John, how are you?Hi guys!
RegisterNeutralNeutralInformal
How commonHigh-frequency chunkHigh-frequency chunkHigh-frequency chunk
CEFR level-A1A1
Part of speechexclamation
Collocationssay good morning, wish good morning, good morning textsay hello, hello there, hello everyone, hello friend, hello worldsay hi, wave hi, hi there
AntonymsGood evening, Good nightgoodbye, farewellbye, goodbye, farewell, see you
Common mistakesSaying 'good morning' in the evening., Using it without a smile or friendly tone., Confusing with 'good night' for evening.Using 'hello' in overly formal situations., Confusing 'hello' with 'hi' for informal contexts., Not varying the greeting based on time of day.Using 'hi' in overly formal contexts., Spelling it as 'hey' which is more informal., Confusing with 'hello' which is slightly more formal.
Usage notesUsed when greeting someone in the morning. It’s appropriate in both formal and informal contexts.Use '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.Used among friends and in casual settings. Avoid in formal situations like interviews or professional meetings.

See it in real clips

Good morning
Hello

Frequently asked questions: Good morning vs Hello vs Hi

What's the difference between Good morning, Hello, and Hi?

Good morning: A friendly greeting said in the morning. Hello: A word used to greet someone. Hi: A casual way to greet someone.

Can you show an example of each?

Good morning: Good morning! How did you sleep? Hello: Hello John, how are you? Hi: Hi guys!

Can I use Good morning, Hello, and Hi interchangeably?

Not always. Good morning, Hello, and Hi 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.