Moss/mɔːs/ Definition 1 of 4Pro Tip 1/3Natural Imagery Used to evoke a sense of nature, often in poetic contexts. Her poetry spoke of forests with rocks draped in veils of moss. Pro Tip 2/3Symbol of Age Indicates something is very old, as moss takes time to grow. The castle ruins, thick with moss, told tales of ancient times. Pro Tip 3/3Quiet Places Often associated with serene, undisturbed locations. We found tranquility in a mossy glade, far from the city noise.