Definition

Having no doubt; confident or certain about something.

Example

I am sure that I left my keys on the table.

Conversation

Are you sure you want to go hiking this weekend?

Absolutely! I think it will be a lot of fun.

I just want to make sure the weather is nice before we go.

That’s a good idea; I’ll check the forecast later.

Synonyms & Antonyms

Definition

In a way that shows certainty or confidence about something.

Example

Sure, I can help you with that!

Conversation

Are you sure you want to go to that concert tonight?

Yeah, I’m really excited about it!

Okay, just checking because it might rain.

Root Explanation

Sure → This word originates from Old French *sor*, meaning certain or secure. It conveys a sense of certainty or confidence in something.

Memory Tip

Think of the Old French word for certain, 'sor', to remember that 'sure' means being certain or confident about something.

Visually Confused Words