This is the 577th most frequent Vietnamese word.
chắc
"Chắc" means "sure," "certain," or "likely" in English.
In this sentence, "chắc" is used to express certainty or assurance about an action or fact.
Tôi chắc rằng mình đã khóa cửa.
I am sure that I locked the door.
Here, "chắc" is used in a question to inquire about someone's certainty or confidence.
Có chắc bạn muốn làm điều này không?
Are you sure you want to do this?
In this context, "chắc" is part of the phrase "chắc chắn," indicating something solid, robust, or reliable, often in a physical or structural sense.