Reduce; reduction

(Homonym: read).
1. Having any of numerous bright or strong colors reminiscent of the color of blood or cherries or tomatoes or rubies; SYN. reddish, ruddy, blood-red, carmine, cerise, cherry, cherry-red, crimson, ruby, ruby-red, scarlet.
2. Red with or characterized by blood.
3. (Used of hair or fur) Of a reddish brown color; reddish.

1. River 1018 miles (1638 kilometers) flowing E on Oklahoma-Texas boundary and into the Atchafalaya and Mississippi in Louisiana, tributary of the Mississippi River; Also called: Red River.
2. River N central United States and S central Canada flowing N on Minnesota-North Dakota boundary and into Lake Winnipeg in Manitoba.

The quality or state of the chromatic color resembling the hue of blood; SYN. redness.

Informal term for a leftist, revolutionary, or communist, which originated in the 19th century in the form “red republican”, meaning a republican who favored a social as well as a political revolution, generally by armed violence. Red is the color adopted by socialist and communist parties.
To be soft on these political philosophies, one is thereby tainted “pink”.