friendship
n. C / U B1 Intermediate Oxford US //ˈfɹɛndʃɪp// UK //fɹˈɛndʃɪp// friend·ship
n. a close and friendly relationship between people who like and trust each other.
n. a state of mutual trust and support between people. Often used to describe the bond between individuals who are not related by blood or marriage.
Their friendship began when they were both in primary school.
Maintaining a long-distance friendship requires regular communication and a lot of effort from both people.
The political alliance eventually blossomed into a genuine personal friendship that lasted long after both leaders had retired from public life.
Usage
Uncountable when referring to the abstract concept of being friends; countable when referring to specific relationships.