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