Friendship
Camaraderie
noun
If you treat someone with courteous intimacy, you're probably trying to build a friendship with them. Or… maybe something more? No, stop, it's not that kind of intimacy! This word is all about polite friendship and camaraderie. Yay for friendship!
懇親 is a formal word that means getting to know someone better in a friendly and sociable manner. You'll most often see it in the word 懇親会 (a casual party for socializing).
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
飲み放題のパーティーを通じてチームメイトとの懇親を深めました。
Through all-you-can-drink parties, I built camaraderie with my teammates.
この会場で大学の教授や生徒たちの懇親会が行われる予定です。
There will be a friendly mixer for college professors and students at this venue.
このパーティは一緒に食事やゲームをすることで、懇親を図るのが目的です。
The purpose of this party is to get to know each other better by having a meal and playing games together.