IPA: //ˈlaɪnˌmeɪt//
KK: /ˈlaɪnˌmeɪt/
A person who plays alongside another in the same line during a game, typically in sports like hockey or football.
The quarterback and his linemate worked together to execute the perfect play.
Linemate → It is formed from "line" (from Old English *līne*, meaning a row or series) and "mate" (from Old English *gemetta*, meaning a companion or friend). The word "linemate" refers to a companion or teammate who plays alongside you in a line or formation.
Think of a 'line' where your 'mate' stands beside you — that's why a linemate is someone who plays alongside you in a team.