red card /ˈɹɛd ˌkɑɹd/noun 3red-card verb 1forms 4 noun3 •A card displayed by the referee when a player is sent off for a serious infringement of the rules.In the 1994 FIFA World Cup, Argentine player Diego Maradona was given a red card for striking US player Tab Ramos. •(informal) Any official instructions to vacate an area.I hoped to park in the members' area but the attendant showed me the red card. •(US) A card indicating a firefighter's qualifications and specialties. red-card verb1 •To show (a player) a red card, and dismiss them from the playing area; to send off.He was red-carded for striking the other player. formsred-carded · red-carding · red-cards · red cards