1 elder brother

1 Brothers!

2 brethren

3 dude (colloquial)

4 brother (diminutive form of address between males)

1 older brother

2 classifier: 个 gè

3 classifier: 位 wèi

1 eldest brother

2 big brother (polite address for a man of about the same age as oneself)

3 gang leader

4 boss

1 handsome guy

2 lady-killer

3 handsome (form of address)

1 General Lü Meng 呂蒙|吕蒙 of the southern state of Wu (idiom); model of self-improvement by diligent study (from unlettered soldier to top strategist of Wu)

1 to be gravely mistaken (idiom)

1 lit. kept inside a drum (idiom)

2 fig. completely in the dark

1 benighted (idiom)

2 ignorant