# chắc meaning in Vietnamese: probably (A1)

> chắc means “probably, I guess” in Vietnamese. It can also mean sure. Examples with audio, in Northern and Southern wording.

Source: https://vietnamesebuddy.com/words/chac-probably/ · Updated 2026-10-21

**chắc**: probably · sure

Level: A1 (our estimate)

Typed without accents: chac

## 1. probably (adverb)

probably, I guess

Goes before what you are guessing, to make it softer: *Chắc chị bận*, you're probably busy.

- Giờ này chắc chị Lan ngủ rồi. — Lan's probably asleep by now.
- Saigon: Chắc em trễ mười phút. | Hà Nội: Chắc em muộn mười phút. — I'll probably be ten minutes late.

Level: A1 · to recognize

Grammar: [Probably, must be: chắc (là)](https://vietnamesebuddy.com/grammar/chac-probably/)

## 2. sure (adjective)

sure, certain

*Chắc không?* asks 'are you sure?'. *Chắc chắn* is stronger: certain, definitely.

- Saigon: Em chắc không? Coi lại đi. | Hà Nội: Em chắc không? Xem lại đi. — Are you sure? Check again.
- Saigon: Chị không chắc mấy giờ xe tới. | Hà Nội: Chị không chắc mấy giờ xe đến. — I'm not sure what time the bus comes.

Level: A2

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