Prequaintance is some** you know of or heard about before but have yet to meet, he/she is not an acquaintance but not a stranger either.
Prequaintance是你知道或者原来听说过但还没有见过面的人，既不算熟人，也不是陌生人，所以，我们就叫“没见过面的熟人”吧。
比如，社交**上彼此加了好友，但没有见过面的人就可以用prequaintance表示。
Acquaintance is a person with whom ** has been in contact but who is not a close friend.
Acquaintance指有来往但关系并不近的熟人。
注意到了吗?Prequaintance其实就是把acquaintance的前缀变成了pre，也就是“...之前的”意思。是不是很方便?
Friend is a person attached to another by feelings of affection or personal regard.
Friend就是彼此之间有感情，相互关爱的人。
当然了，每个人对朋友的定义和标准都不一样。
BFF stands for best friend forever, often refers to a person's best friend, typically a girl's best friend.
BFF就是永远的好朋友，一般女生比较喜欢用BFF来表示自己的“闺蜜”。
Framily (the blend of "friends" and "family") means a person's closest friends, particularly those who feel like part of the family. Framily is a new social group underpinned by the principle that good friends are the family we can choose for ourselves.
Framily(friends和family两个词的**词)指很亲近的朋友，尤其指那些亲如家人的朋友。Framily是一个新兴的社会群体，表达的理念为“好朋友是我们自己可以选择的家庭”。