red in WordNet English dictionary

1. of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies
   red  reddish  ruddy  blood-red  carmine  cerise  cherry  cherry-red  crimson  ruby  ruby-red  scarlet 
   
2. characterized by violence or bloodshed
   "writes of crimson deeds and barbaric days"- Andrea Parke; "fann'd by Conquest's crimson wing"- Thomas Gray; "convulsed with red rage"- Hudson Strode
   crimson  red  violent 
   
3. (especially of the face) reddened or suffused with or as if with blood from emotion or exertion
   "crimson with fury"; "turned red from exertion"; "with puffy reddened eyes"; "red-faced and violent"; "flushed (or crimson) with embarrassment"
   crimson  red  reddened  red-faced  flushed 
   

1. emotionally charged terms used to refer to extreme radicals or revolutionaries
   Bolshevik  Marxist  red  bolshie  bolshy 
   
2. the amount by which the cost of a business exceeds its revenue
   "the company operated at a loss last year"; "the company operated in the red last year"
   loss  red ink  red 
   
3. red color or pigment; the chromatic color resembling the hue of blood
   red  redness