buddy

1. A friend or casual acquaintance. · They have been buddies since they were in school.
2. A partner for a particular activity. · drinking buddies
3. A workmate assigned to work closely with another. · Near-synonym: butty· training buddies [mentor/mentee]
4. An informal and friendly address to a stranger, usually male; a friendly (or occasionally antagonistic) placeholder name for a person one does not know. · Hey, buddy, I think you dropped this.

الجمع buddies