any of various colors resembling the color of blood; the primary color at one extreme end of the visible spectrum, an effect of light with a wavelength between 610 and 780 nm.

something red.

( often initial capital letter ) a radical leftist in politics, esp. a communist.

Informal . red light ( def. 1 ) .

Informal . red wine

a glass of red.

Also called red devil , red bird. Slang . a capsule of the drug secobarbital, usually red in color.

of the color red.

having distinctive areas or markings of red

a red robin.

of or indicating a state of financial loss or indebtedness

the red column in the ledger.

radically left politically.

( often initial capital letter ) communist.

of, pertaining to, or characteristic of North American Indian peoples

no longer in technical use.

in the red

operating at a loss or being in debt ( opposed to in the black )

The newspaper strike put many businesses in the red.

paint the town red. paint ( def. 16 ) .

see red

Informal . to become very angry; become enraged

Snobs make her see red.

noun, adjective

bittersweet , bloodshot , blooming , blush , brick , burgundy , cardinal , carmine , cerise , cherry , chestnut , claret , copper , coral , crimson , dahlia , flaming , florid , flushed , fuchsia , garnet , geranium , glowing , healthy , inflamed , infrared , magenta , maroon , pink , puce , rose , roseate , rosy , rubicund , ruby , ruddy , rufescent , russet , rust , salmon , sanguine , scarlet , titian , vermilion , wine