Give some English expressions of different types of friends.

题目

Give some English expressions of different types of friends.
1. next friend: a person admitted to appointed by a court to act for the benefit of a person (as an infant) lacking full legal capacity 诉讼代理人
2. mutual friend: a person who is the friend of two people who may or may not know each other 共同的朋友
3. bosom friend: a friend that you like a lot and have a very close relationship with 知己
4. pen friend: someone you exchange letters with as a hobby but whom you usually not meet 笔友
5. fair-weather friend: someone who is good friend when it is easy for them to be one and who stops when you are having problems 只可工安乐而难共患难的朋友

答案

companion
initimate
confident
comrade
familiar
schoolmate
playmate
best friend
close friend
roommate
classmate
bedfellow
fellow
workmate
penpal
fast freind
bosom friend
boon companion
mate
alter ego
other self
soul mate
crony
buddy
sidekick
homeboy
homegirl
supporter
backer
advocate
sympathizer
compatriot
colleague
associate
加形容词等修饰语：
best/close/dear/good/great/old/real/special/faithful/loyal/true/lifelong/long-standing/female/male/woman/all-weather/family/personal/childhood/school.