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Noun: rainbow  'reyn,bow
  1. An arc of coloured light in the sky caused by refraction of the sun's rays by rain
  2. An illusory hope
    "chasing rainbows"
  3. An assortment, a varied collection
    "a rainbow of possibilities"

Derived forms: rainbows

Type of: arc, bow, hope, promise

Part of: sky

Encyclopedia: Rainbow, Placer County, California