play (one's) part

play (one's) part

To do what one should and is expected to do within a group in order to achieve a particular result; to perform one's role. Thank you for your praise, but every member of the team played their part in making this project a reality. Each and every one of you has to play your part if we're going to win this match today.
See also: part, play

play a/your ˈpart (in something)

be involved in something; be a reason for something happening: You too can play a part in helping your community.Arguments within the party played a part in the downfall of the government.
See also: part, play