Rainbows arch, bridge of colors in the sky.
Meaning: This sentence is saying that a rainbow is like a bridge made of colors that appears in the sky.
Choice of Words: Rainbows are arcs of colored light that appear in the sky when sunlight is refracted through water droplets. Arch means to curve or bend into a shape like a bow. Bridge is a structure that is built over a river or other body of water to allow people or vehicles to cross it. Colors are the different shades of light that we see. Sky is the upper part of the atmosphere that we see above us. When you put them together, the sentence is a metaphor comparing a rainbow to a bridge of colors in the sky.
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