- 紅茶【こうちゃ】 - black tea 
- 紅葉【こうよう】 - autumn colours, fall colors, leaves changing color (colour), leaves turning red, red leaves, leaves turning yellow, yellow leaves, (Japanese) maple (Acer japonicum), venison, layered colors in garments, resembling autumn colors 
- 紅白【こうはく】 - red and white, colours for festive or auspicious occasions (colors), two teams, two groups, Kōhaku Uta Gassen, annual contest between male and female popular singers on New Year's Eve (sponsored and broadcast by NHK) 
- 口紅【くちべに】 - lipstick 
- 紅梅【こうばい】 - red-blossomed plum tree, red Japanese apricot 
- 紅潮【こうちょう】 - flush, blush 
- 紅海【こうかい】 - Red Sea 
- 紅色【こうしょく】 - red (color, colour) 
- 深紅【しんく】 - deep crimson 
- 紅花【べにばな】 - safflower (Carthamus tinctorius), dyer's safflower 
- 淡紅色【たんこうしょく】 - pink, rose