Definition of "play a part" in English

Verb

1. To be involved in such a way to affect the outcome, to be a contributing factor.

   • I'd like to play a part in the initial design.
   • The roads were foggy during the accident but alcohol may have also played a part.
   • Exercise played a major part in his weight loss.
   • My decision to leave home at the age of sixteen played a big part in my personal development.