Sure vs Yes yes

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

Sure

Top 1,000 (very common)A1adjective

Yes yes

InformalTop 2,000 (common)
Most formal: SureMost common: Sure
 SureYes yes
Pronunciation🇬🇧 /["/ʃʊə(r)//ʃɔː(r)/"]/🇺🇸 /["/ʃʊr/"]/🇬🇧 //jɛs jɛs//🇺🇸 //jɛs jɛs//
Meaningcertain or confident about somethingA way to agree or show excitement.
ExampleI am sure that we will win the game.When she said the event was postponed, I replied, 'yes yes!' because it meant more time to prepare.
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1-
Part of speechadjective
Collocationsbe, feel, seem, absolutely, completely, quite, about, of, be, feel, seem, absolutely, completely, quite, about, ofyes yes moment, say yes yes, yes yes response
Antonymsuncertain, doubtful, unsure-
Common mistakesUsed too casually in formal situations., Confused with 'surely' which implies a stronger confirmation., Mispronounced as 'sher' instead of 'shur'.Using 'yes yes' in formal emails or speeches., Assuming 'yes yes' can replace 'yes' in all situations., Not considering tone and context when saying 'yes yes'.
Usage notesUsed to express agreement or assurance. It's typically appropriate in most casual and formal contexts, but can feel dismissive if overused in a conversation.Used in casual conversations to express strong agreement or enthusiasm. Avoid in formal settings.

See it in real clips

Sure
Yes yes

Frequently asked questions: Sure vs Yes yes

What's the difference between Sure and Yes yes?

Sure: certain or confident about something Yes yes: A way to agree or show excitement.

Which is more formal: Sure and Yes yes?

Sure is the most formal of these.

Which is more common: Sure and Yes yes?

Sure is the most common in everyday English.

Can you show an example of each?

Sure: I am sure that we will win the game. Yes yes: When she said the event was postponed, I replied, 'yes yes!' because it meant more time to prepare.

Can I use Sure and Yes yes interchangeably?

Not always. Sure and Yes yes 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.

Related comparisons