noun:

• the eldest son

noun:

• the younger of two elder brothers

noun:

• (my) elder brother

noun:

• older brother - honorific language

pronoun:

• you (in ref. to male of greater age or status) - epistolary style - honorific language ➜ 小弟

pronoun:

• you - of a male equal or superior, usu. in letters by men - polite language

pronoun:

• wise elder brother; polite reference to another's older brother, or to one's senior

noun:

• my elder brother

noun:

• one's deceased elder brother