commonality

1. N-VAR Commonality is used to refer to a feature or purpose that is shared by two or more people or things. 共同點; 共同之処; 共性[正式] [oft N 'of' n]

We don't have the same commonality of interest. 我們沒有利益共同點。

There are an amazing number of commonalities between the systems. 這些系統有大量共同之処。