present participle and gerund of contribute
"The team members are contributing their unique skills to solve the complex problem."
In plain English: To contribute means to give something, such as money, time, or an idea, that helps make a project or group succeed.
"Everyone is contributing to making the team project successful."
tending to bring about; being partly responsible for
"working conditions are not conducive to productivity"
"the seaport was a contributing factor in the growth of the city"
"a contributory factor"