This is the 1406th most frequent Turkish word.
özür
"Özür" means "apology" or "excuse" in English.
Here, 'özür' is used in the phrase 'özür dilerim', which is a standard way to express an apology in Turkish.
Özür dilerim, geç kaldım.
I'm sorry, I'm late.
In this sentence, 'özür' is used as a noun meaning 'apology'.
Ona özür borçlusun çünkü ona yanlış yaptın.
You owe him an apology because you wronged him.
Here, 'özür' is used in the sense of a 'physical or mental deficiency'.