What does it mean when a wide receiver is only a slot

Why the Cincinnati Bengals haven't re-signed WR Tyler Boyd, and bengals slot receiver 166 votes, 111 comments 254K subscribers in the bengals community The Cincinnati Bengals subreddit is a place for Bengals fans to gather shadow panther slot In a position that was held down for Tyler Boyd for almost ten years for the city of Cincinnati, the slot receiver position is as up in the air

slot cars nz In a position that was held down for Tyler Boyd for almost ten years for the city of Cincinnati, the slot receiver position is as up in the air