This is the 336th most frequent Czech word.
skupina
"Skupina" in English means "group."
Here, 'skupina' refers to a 'group', specifically a musical group or band.
Hudební skupina zahrála nádherný koncert.
The music group performed a wonderful concert.
In this case, 'skupina' denotes a 'group' of people, in this instance, students.
Skupina studentů diskutovala o projektu.
A group of students discussed the project.
Here, 'skupina' refers to a 'group' or 'category' in a scientific or classificational context.