number eight noun3 •A player in the scrum, who controls the movement of the scrum, and can pick up the ball exiting the scrum; eighthman.But Ireland dug out a gutsy response and applied pressure which resulted in number eight Heaslip diving over in the corner to revive home hopes. — 2011 •A box-to-box midfielder.Naturally, Franco plays as a number eight (a midfielder who has both attacking and defending responsibilities), but he also has the capability to play as a defensive midfielder. — 2021 •The batsman who bats eighth. formsnumber eights