Senses
红尘/ 紅塵 the mortal world
the world of mortals in Buddhist or Taoist thought; human society or worldly affairs
红尘/ 紅塵 bustling place
(literary) the dust raised by traffic in a busy city; a bustling, prosperous place
红尘/ 紅塵 red dust
(literary) red dust or clouds of dust raised by carts and horses on a busy road