Tomato ketchup.
Red wine.
A red light (a traffic signal)
The redfish or red drum, Sciaenops ocellatus, a fish with reddish fins and scales.
A red kangaroo.
An American Indian.
A revolutionary socialist or (most commonly) a Communist; (usually capitalized) a Bolshevik, a supporter of the Bolsheviks in the Russian Civil War.
One of the three color charges for quarks.
One of the 15 red balls used in snooker, distinguished from the colours.
Any of several varieties of ale which are brewed with red or kilned malt, giving the beer a red colour.
Red lemonade
Any of a range of colours having the longest wavelengths, 670 nm, of the visible spectrum; a primary additive colour for transmitted light: the colour obtained by subtracting green and blue from white light using magenta and yellow filters; the colour of blood, ripe strawberries, etc.
A redshank.
Chili con carne (usually in the phrase "bowl of red").
The drug secobarbital; a capsule of this drug.
Having a color charge of red.
Of the hearts or diamonds suits. Compare black (“of the spades or clubs suits”)
Amerind; relating to Amerindians or First Nations
Of the lower-frequency region of the (typically visible) part of the electromagnetic spectrum which is relevant in the specific observation.
the red-black grand coalition in Germany
With a red hue due to embarrassment or sunburn.
Having an orange-brown or orange-blond colour; ginger.
The U.S. Republican Party.
Left-wing parties and movements, chiefly socialist or communist, including the U.K. Labour party and the Social Democratic Party of Germany.
Having red as its color.
Insufficiently cooked, so as to be unpalatable or inedible.
Very lightly cooked.
The broccoli was nicely undercooked.
Done with insufficient energy, enthusiasm, etc.