a very influential person or group; a leading company or individual in a particular market or industry
Meanwhile, grease has given rise to a whole industry, in which the Canadian firm Sanimax is a major player.
J-Street has become a major player in the U.S. political arena which can no longer be ignored.
It seemed as if the general just lost heart to be a major player.
The Saudi family has been a major player in the politics of the Arabian Peninsula since the early 18th Century.
And the Prius is still a major player—with a significant change.
With that math, the amount already accomplished shows Occupy SMS on a fast track to becoming a major player in the relief effort.
While Rehman was a major player, he can be quickly replaced.
However, Room 237 takes that a few steps further and suggests Kubrick was a major player in the event.
Politically ambitious, he recognizes that he could be a major player if he helps pull off health reform.
Curiously, however, just one major player in the network has declined: Washington affiliate WETA.