Rainbow arches over the clouds.

Meaning: It describes the rainbow's position in the sky, as if it's a curved bridge over the clouds.

Choice of Words: The word "arch" means to form a curved shape. "Clouds" are the white, fluffy things we see in the sky. When we put them together, it's like the rainbow is forming a curved shape over the clouds.

Alternative Expressions

The rainbow forms a bridge across the sky.

Meaning: This means that the rainbow looks like a bridge connecting different parts of the sky.

Choice of Words: Rainbow is a colorful arc that appears in the sky after rain. Forms means to take on a particular shape or appearance. Bridge is a structure built over a river or other obstacle to allow people or vehicles to cross. Sky is the expanse of space above the Earth. When you put them together, "The rainbow forms a bridge across the sky" describes a rainbow that looks like a bridge in the sky.

The rainbow is like a colorful archway in the sky.

Meaning: This means that the rainbow looks like a colorful archway that you could walk through in the sky.

Choice of Words: Rainbow is a colorful arc that appears in the sky after rain. Like is used to compare two things. Archway is an arched opening in a wall or building. Sky is the expanse of space above the Earth. When you put them together, "The rainbow is like a colorful archway in the sky" compares the rainbow to an archway in the sky.

Related Expressions