raiderPronunciation: /ˈreɪdə(r)/Translate raider | into French | into German | into Italian | into Spanish Definition of raider noun a person who attacks an enemy in their territory; a marauder:Scandinavian raiders put down their roots in Cumbria a person who attacks business premises in order to steal:masked raiders burst into the 100-seater restaurantraider in other Oxford dictionaries Definition of raider in the US English dictionary