The flower that symbolizes purity is the LILY, which is a four-letter word. The LILY is a popular flower in many cultures and is often associated with innocence, purity, and beauty. It is also a symbol of motherhood, fertility, and rebirth. In Christianity, the LILY is a symbol of the Virgin Mary and is often used in religious ceremonies. In Ancient Greece, the LILY was a symbol of the goddess Hera. In Chinese culture, the LILY is a symbol of summer and abundance.