- middle-aged elder male
Usage notes 
The term 아저씨 (ajeossi) is used to refer to a male several years older than the speaker, often as a polite replacement for a second person singular pronoun (너 or 당신).
Related terms 
- 오빠 - elder brother of a female
- 형 - elder brother of a male
- 아줌마 - middle aged woman; older female
- 할아버지 - grandfather; senior male