Your involvement in or with something is the fact that you are taking part in it. 参与
noun [专属名词] 参与，介入；投入，沉迷；暧昧关系，恋爱关系
There was a growing unease about their involvement in the war. 他们对卷入战争感到日益不安。
-volv-
involvement
n. 参与，介入（in 在…内 + volv + e + ment名词后缀)
