Verb
have a hand in (third-person singular simple present has a hand in, present participle having a hand in, simple past and past participle had a hand in)
(idiomatic) To contribute to, participate in, or influence.
Things would be better if you let me have a hand in the planning process.
It was clear she had a hand in this.
In point of fact, Western philosophy has never set itself free of Christianity: wherever Christianity did not have a hand in the construction of modern philosophy it served instead as a stumbling block. Jacques Maritain
The setting is a worthy one, if the devil did desire to have a hand in the affairs of men. Arthur Conan Doyle
You should know as much as you can about the human species if you have a hand in designing human society. Frans de Waal
When you do a lot of acting your entire life, you see the entire set from one point of view. To have a chance to step back and pull it all together is really exciting. You want to do it all; you want to have a hand in everything. Danica McKellar
In the future, I think movies are going to be more of data sets that viewers have a hand in controlling - where the narrative originates and what happens to the content. Ryan Trecartin
Have a hand in your own treatment. I have nothing but praise for our doctors, but I think they could help us better, and we can help them if we work together. Mary Ann Mobley