closest to
closest friend
closest match
closest possible
A: Who is your closest friend?
A：谁是你最亲密的朋友？
B: My brother is my closest friend.
B：我哥哥是我最亲密的朋友。
1) 距离最近的
2) 关系最亲密的
3) 程度最接近的
1. 最接近的，最近的，最亲密的
adjective
1. The person or thing that is nearest in distance, time, relationship, or similarity.
Synonym: nearest, most intimate