by reason of
US /baɪ ˈriː.zən ʌv/
UK /baɪ ˈriː.zən ʌv/

1.
do, vì, bởi vì
because of; on account of
:
•
The game was canceled by reason of heavy rain.
Trận đấu bị hủy do mưa lớn.
•
He was excused from the meeting by reason of illness.
Anh ấy được miễn họp vì bệnh.