English definition of “red”
/red/ adjective (redder, reddest)
COLOUR › being the same colour as blood: a red shirt
HAIR › Red hair is an orange-brown colour: Rosie's got red hair and freckles.
go red UK (US turn red) › If someone goes red, their face becomes red because they are embarrassed or angry: He kissed her on the cheek and she went bright red.