When I have two items and they are the same, we can say that they possess "equality".
Let's say I have three or four items and they are all the same. What do we call the quality that they possess? Can we say the three items possess "equality" too? What are the other words for this quality?
For example, I have four athletes and they are all equal in strength. What do we call the equality among their strengths?
Thank you!