Stay vs Wait up

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

Stay

Top 1,000 (very common)A1verb

Wait up

InformalTop 3,000 (common)
Most formal: StayMost common: Stay
 StayWait up
Pronunciation🇬🇧 /["/steɪ/","/steɪz/","/steɪd/","/ˈsteɪɪŋ/"]/🇺🇸 /["/steɪ/","/steɪz/","/steɪd/","/ˈsteɪɪŋ/"]/🇬🇧 //weɪt ʌp//🇺🇸 //weɪt ʌp//
Meaningto remain in a place or not leaveTo stop or pause for someone to catch up.
ExamplePlease stay here until I return.They ran ahead, but I shouted, 'Wait up!' so I could join them.
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 3,000 (common)
CEFR levelA1-
Part of speechverb
Collocationsbehind, on, on, allow somebody to, can, manage to, at, in, on, a place to stay, a reason to stay, stay and chat, help, etc., behind, on, on, allow somebody to, can, manage to, at, in, on, a place to stay, a reason to stay, stay and chat, help, etc.wait up for someone, wait up a minute, wait up guys
Antonymsleave, depart, go-
Common mistakesUsing 'stay' with an object when it should be intransitive (e.g., saying 'stay the book' instead of 'stay at home'), Mixing up 'stay' with 'wait' when referring to time spent, Confusing 'stay' with 'remain' in contexts where only one fits.Used with 'to' instead of 'for' (e.g., 'wait up to me')., Forget to use 'up' (e.g., 'wait for me')., 'Up' is placed incorrectly in the sentence.
Usage notesUse 'stay' when you want to express remaining somewhere, often temporary. It's versatile for casual and formal contexts. Avoid using it in highly formal writing.Used in casual conversation among friends. Not suitable for formal writing or speech.

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Stay
Wait up

Frequently asked questions: Stay vs Wait up

What's the difference between Stay and Wait up?

Stay: to remain in a place or not leave Wait up: To stop or pause for someone to catch up.

Which is more formal: Stay and Wait up?

Stay is the most formal of these.

Which is more common: Stay and Wait up?

Stay is the most common in everyday English.

Can you show an example of each?

Stay: Please stay here until I return. Wait up: They ran ahead, but I shouted, 'Wait up!' so I could join them.

Can I use Stay and Wait up interchangeably?

Not always. Stay and Wait up 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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