Solving the Analogy: Ocean is to Pond as Deep is to Shallow

The analogy ocean : pond :: deep : shallow relies on a scale relationship—specifically, the dimension of depth (and by extension, size).

Breaking It Down

• Ocean and pond are both bodies of water, but they differ dramatically in scale: oceans are vast and deep; ponds are small and shallow.
• Deep describes the ocean's defining vertical dimension.
• Shallow describes the pond's corresponding dimension.

Thus, the second pair mirrors the first: the characteristic quality of the larger term (deep) is contrasted with the characteristic quality of the smaller term (shallow).

Why Not Other Options?

You might consider "wet," "blue," "salty," or "cold"—but these are shared properties, not differentiating ones. Both oceans and ponds are wet. Only depth/scale cleanly distinguishes them in a way that maps to an antonym pair.

Analogy Type

This is a degree-of-intensity or magnitude analogy: A is to B as [defining trait of A] is to [defining trait of B].