words of thanks; words of gratitude; acknowledgements
apology
卒業生代表が謝辞を述べた。
The graduating class representative gave a speech of thanks.
論文の最後に指導教官への謝辞を記した。
I wrote acknowledgements to my advisor at the end of my thesis.
謝辞の中で家族への感謝を語った。
In the words of thanks, gratitude to the family was expressed.