📖 rainbow
A Weather & Sky word — definition from our own bank
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rainbow
noun
- an illusory hope“chasing rainbows”
- an arc of colored light in the sky caused by refraction of the sun's rays by rain
← dew · all Weather & Sky words · lightning →
Where these words come from
Definitions load first from tukuk.org’s own word bank — about 207,000 English word-sense rows built weekly on free GitHub runners from Princeton WordNet (redistributed under its free-use notice with attribution) and frequency-ranked by wordfreq (CC-BY-SA 4.0), the same local index that answers the dictionary tool instantly. Anything the bank does not hold falls back to the free Free Dictionary API, cached a day like every other lookup.
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