Here's a breakdown:
* 선배 (sunbae): Literally means "senior" or "predecessor".
* 님 (-nim): A Korean honorific suffix used to show respect.
When to use Sunbaenim:
* In school or university: To address older students or those in a higher grade.
* At work: To address colleagues who have been with the company longer or are in a higher position.
* In any situation where someone has more experience or knowledge.
Examples:
* "선배님께서 도와주셔서 감사합니다." (Sunbaenim kkeseo do와ju syeoseo gamsahahamnida.) - "Thank you for your help, Senior."
* "선배님께서 어떤 조언을 해주실 수 있으세요?" (Sunbaenim kkeseo eotteon joeon-eul haeju sil su isuseyo?) - "Can you give me some advice, Senior?"
It's important to note that using "Sunbaenim" is a way of showing respect and acknowledging the person's seniority. It's generally considered polite to use this term when addressing someone who is older or more experienced than you.