adjective
redder; reddest
[also more ~; most ~]
having the color of blood
reddish brown or reddish orange in color
of a person's face :pink because of embarrassment, anger, etc.
of eyes :having many red lines from lack of sleep, drunkenness, etc. :bloodshot
somewhat old-fashioned informal + disapproving :supporting Communism :communist
a red rag to a bull
Brit informal :something that makes a person very angry
not one red cent
paint the town red
noun
plural reds
the color of blood [noncount]
see color picture
[count, noncount] :red wine
Red [count] somewhat old-fashioned informal + disapproving :a Communist or someone who supports Communists
in the red
spending and owing more money than is being earned
see red
informal :to become very angry