gamerEnglishOxford New American Dictionarygamer /ˈɡāmər, ˈɡeɪmər / ▸ noun 1 a person who plays video games or participates in role-playing games: every gamer has suffered from small-screen videos. 2 North American (especially in sports) a person known for consistently making a strong effort: he's a gamer, always ready to go that extra mile.