仁弟

réndì

(usually used in a letter to a male friend younger than oneself or to a former male student) my dear friend

* * *

ren2 di4

(honorific written address to younger man) My dear young friend

* * *

仁弟

rén dì

(敬) my dear friend

* * *

仁弟|仁弟 [rén dì] ► (honorific written address to younger man) My dear young friend