rainbow [-s, 's] n

OE; see rain and bow, n.

  1. Arc of colored light in the sky after rain; beautiful natural phenomenon caused by the reflection and refraction of light by drops of water in the air.
  2. [Fig.] beautiful blooming colors of approaching spring.
  3. [Fig.] hope; calm after a storm; resurrection; life after death.
  4. [Fig.] beauty; magic; bliss; joy; happiness; contentment; freedom from care or trial.