Flatmate
A friend from school or college
Classmate
Fiancé
Colleague
(colloquial) A person you used to have a relationship with
A person that you work with
Your husband, wife, boyfriend or girlfriend
Ex
Close friend
Two people who are married or in a romantic relationship
Couple
A person that you share a place to live
Partner
The person that you are engaged to be married to
A very good friend you can talk to about anything