apologize · verb I /əˈpɑl.əˌdʒɑɪz/Full view
B1 to tell someone that you are sorry about something you have done
Dictionary examples:

I must apologize to Isobel for my behavior.

Trains may be subject to delay - we apologize for any inconvenience.

She apologized for leaving early.

Learner example:

This letter is to inform you that I will not be able to attend tomorrow's class due to medical issues. I apologize for the short notice. (Preliminary English Test; B1; Spanish)

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