have a stake in

Have a share, interest, or involvement in something or someone. For example, Every member had a stake in the business, or She knew that she had a stake in her children's future. This term uses stake in the sense of “something to gain or lose,” as in gambling. [Late 1700s]

Words nearby have a stake in

have a penchant for, have a right to, have a say in, have a screw loose, have a shot at, have a stake in, have a thing about, have a thing going, have a time of it, have a way with, have a weakness for