This is the 606th most frequent Azerbaijani word.
təəssüf
Regret.
Expression of regret about an event or inability.
Təəssüf edirəm, lakin bu gecə görüşə bilmərəm.
I regret, but I cannot meet tonight.
Description of an unfortunate result or occurrence.
Onun sınavdan keçməməsi təəssüf doğurur.
It is unfortunate that he did not pass the exam.
Acknowledgment of an undesired situation.