common point; shared feature
Used when comparing two or more things to highlight what they have in common. Often appears in phrases like 共通点を見つける (find common ground) or 共通点が多い (have a lot in common).
二人の趣味には共通点が多い。
The two have a lot in common in their hobbies.
この二つの事件の共通点を探している。
We are looking for common points between these two incidents.
These two movies have something in common.
The two of them quickly found something in common and became friends.
We have a lot in common when it comes to hobbies.
The teacher pointed out several common features of the two works.