red card

: of the color red

: having red as a distinguishing color

: flushed especially with anger or embarrassment

: a color whose hue resembles that of blood or of the ruby or is that of the long-wave extreme of the visible spectrum

: red clothing

: one that is of a red or reddish color: such as

: to cleanse, disentangle, and collect together (fibers) by the use of cards preparatory to spinning

: an instrument or machine for carding fibers that consists usually of bent wire teeth set closely in rows in a thick piece of leather fastened to a back

: an implement for raising a nap on cloth

: playing card

: a game played with cards

: card playing

: to place or fasten on or by means of a card

: to provide with a card

: to list or record on a card