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 revolutionary socialist or (most commonly) a Communist; (usually capitalized) a Bolshevik, a supporter of the Bolsheviks in the Russian Civil War.
One of the 15 red balls used in snooker, distinguished from the colours.
Red wine.
A redshank.
An Amerind.
The drug secobarbital; a capsule of this drug.
A red light (a traffic signal)
(beverages) red lemonade
One of the three color charges for quarks.
Chili con carne (usually in the phrase "bowl of red")
The redfish or red drum, Sciaenops ocellatus, a fish with reddish fins and scales.
To govern, protect.
To discuss, deliberate.
To advise.
To interpret (a riddle or dream); explain.
To free from entanglement.
To free from embarrassment.
To fix boundaries.
To comb hair.
To separate combatants.
To settle, usually a quarrel.
To clean, tidy up, to put in order.
Having red as its color.
(of hair) Having an orange-brown or orange-blond colour; ginger.
(of a card) Of the hearts or diamonds suits. Compare black
(often capitalized) Supportive of, related to, or dominated by a political party or movement represented by the color red:
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.
Having a color charge of red.