rainbow

English Thesaurus

1. an illusory hope (noun.cognition)

hypernym	:	hope, promise,
definition	:	grounds for feeling hopeful about the future (noun.cognition)

2. an arc of colored light in the sky caused by refraction of the sun's rays by rain (noun.object)

hypernym	:	arc, bow,
definition	:	something curved in shape (noun.shape)

part meronym	:	sky,
definition	:	the atmosphere and outer space as viewed from the earth (noun.object)