WordNet sense 1 (the amount by which the cost of a business exceeds its revenue):

loss

WordNet sense 2 (emotionally charged terms used to refer to extreme radicals or revolutionaries):

bolshevik, Marxist, bolshie, bolshy

WordNet sense 3 (a tributary of the Mississippi River that flows eastward from Texas along the southern boundary of Oklahoma and through Louisiana):

Red River

WordNet sense 4 (red color or pigment; the chromatic color resembling the hue of blood):

redness

WordNet sense 5 ((especially of the face) reddened or suffused with or as if with blood from emotion or exertion):

crimson, flushed, reddened, red-faced

WordNet sense 6 (having color or a certain color; sometimes used in combination):

colorful, coloured

WordNet sense 7 (of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies):

carmine, cerise, cherry, reddish, ruby, ruddy, scarlet, blood-red, ruby-red, cherry-red

WordNet sense 8 (being or having or characterized by hue):

chromatic

WordNet sense 9 (characterized by violence or bloodshed):

violent

WordNet sense 10 (having or covered with or accompanied by blood):

bloody