This is the 971st most frequent Ukrainian word.
спільний
Shared; common; joint.
In this usage, 'спільний' refers to a task or effort that is undertaken collaboratively by multiple individuals.
Наша спільна робота принесла відмінні результати.
Our joint work has yielded excellent results.
In this sentence, 'спільний' describes an interest that is shared or held in common by multiple parties.
Ми маємо спільний інтерес у цьому проекті.
We have a common interest in this project.
Here, 'спільний' characterizes an event that is jointly arranged or participated in.