Meaning of the word "common interest" in English

What does "common interest" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

common interest

US /ˈkɑː.mən ˈɪn.trɪst/
UK /ˈkɒm.ən ˈɪn.trəst/
"common interest" picture

Noun

a shared interest, concern, or goal between two or more people or groups

Example:
They became friends because they share a common interest in photography.
The two countries worked together for their common interest in regional security.