This is the 915th most frequent Vietnamese word.
hẹn
"To arrange" or "to make an appointment."
In this sentence, 'hẹn' is used to denote arranging or scheduling a meeting or appointment.
Chúng ta hẹn gặp nhau vào lúc 8 giờ sáng.
We arrange to meet each other at 8 a.m.
Here, 'hẹn' conveys a sense of making a promise or commitment to do something.
Tôi hẹn sẽ cố gắng học tập tốt hơn.
I promise to strive to study better.
Here, 'hẹn' is used in the expression 'hẹn gặp lại' to indicate anticipation of meeting again in the future.