certainly

word

/ˈsɝtənɫi/
SUR-tuhn-lee
/sˈɜːtənli/
SUR-tuhn-lee

Definition

Used to show that you agree, or to emphasize that something is true, definite, or will happen. It can also politely confirm or accept a request.

Usage & Nuances

More formal than 'sure' or 'of course.' Common in polite responses: 'Certainly, I'll help you.' Often used to add emphasis or agreement. In conversation, sounds more polite or emphatic than casual alternatives.

Example Sentences

Certainly, you may have another cookie.

basic

He will certainly be here by 8 o'clock.

basic

She certainly didn't expect to win the lottery.

natural

If you need anything else, just let me know. Certainly.

natural

This is certainly the right answer.

basic

—Could you help me move this table? —Certainly!

natural