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red

1. any of a group of colours, such as that of a ripe tomato or fresh blood, that lie at one end of the visible spectrum, next to orange, and are perceived by the eye when light in the approximate wavelength range 740--620 nanometres falls on the retina. Red is the complementary colour of cyan and forms a set of primary colours with blue and green
2. red cloth or clothing
3. a red ball in snooker, billiards, etc.
4. (in roulette and other gambling games) one of two colours on which players may place even bets, the other being black
5. Archery a red ring on a target, between the blue and the gold, scoring seven points
6. of the colour red
7. reddish in colour or having parts or marks that are reddish
8. (of wine) made from black grapes and coloured by their skins

Red

Informal
1. Communist, Socialist, or Soviet
2. radical, leftist, or revolutionary
3. a member or supporter of a Communist or Socialist Party or a national of a state having such a government, esp the former Soviet Union
4. a radical, leftist, or revolutionary

What does it mean when you dream about the color red?

A color of vitality and energy, red symbolizes the heart and blood. Red can also represent the emotional state of anger or rage. This color also symbolizes profligacy, raciness, and the immorality of “fallen women” (e.g., Hester Prynne in The Scarlet Letter).

red

[red]
(optics)
The hue evoked in an average observer by monochromatic radiation having a wavelength in the approximate range from 622 to 770 nanometers; however, the same sensation can be produced in a variety of other ways.

red

life-granting color; worn by brides and babies. [Asian Color Symbolism: Binder, 78]

Red

(Or "REDL") A language proposed by Intermetrics to meet the Ironman requirements which led to Ada.

["On the RED Language Submitted to the DoD", E.W. Dijkstra, SIGPLAN Notices 13(10):27 (Oct 1978)].

["RED Language Reference Manual", J. Nestor and M. van Deusen, Intermetrics 1979].
References in periodicals archive ?
One of the remarkable features of the process that has seen the first red-letter day lead to the second, is the lack of an internal spat within the Labour party over its contents.
THE arrival of the National Mod in Fort William is a red-letter day for the town.
The Malton trainer on Saturday savoured another red-letter day at York when Flying Clarets earned Fahey back-to-back victories in the Knavesmire July feature.
A CONVINCING team victory and the top three individual placings made it a red-letter day for Scotland in the inaugural match of the Celtic Cup, fished at Magiscroft.
Emotional Article, for giving Kicking King's trainer Tom Taaffe a red-letter day with a double under a confident ride from Shane McGovern, who rides the King George winner in much of his work at home
Mary James, an official of the Exhall group, said: "This will certainly be a red-letter day for Exhall and we look forward to a happy occasion with Trish.
This is a red-letter day for the Strasburg family,'' said Strasburg, who came to Palmdale in 1948 at age 4 and started collecting Antelope Valley artifacts in the late 1970s.
Victory aboard 9-4 favourite Keon in the second division of that race rounded off a red-letter day for Doyle.