play a big role (in something)(redirected from playing a big role in)
play a big role (in something)
To have an extremely important or fundamental role (in some resultant situation, action, event, outcome, etc.). There were a lot of reason why I quit, but having to work 10 hours a day played a big role. Punk rock played a big role in forming my aesthetic sensibilities. The rookie quarterback ended up playing a big role in the team's amazing comeback victory yesterday.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.