pronoun
you (polite, to an older male); elder brother (polite)
Polite second-person pronoun used to address or refer to an older male, often in letters or formal speech. Can also mean 'elder brother' in a respectful way. Not used in casual conversation.
尊兄にはいつもお世話になっております。
I am always indebted to you, my elder brother (or respected older male).
先日は尊兄より結構な品をいただき、ありがとうございました。
Thank you for the wonderful gift you sent the other day.