An analogy is an argumentative comparison: it compares two unlike things to advance an argument. Specifically, it argues that two things have equal weight, whether that weight be emotional, philosophical, or even literal. Because analogical literary devices operate on comparison, it can be considered a form of metaphor.

For example:

Making pasta is as easy as one, two, three.

This analogy argues that making pasta and counting upwards are equally easy things. This format, “A is as B” or “A is to B”, is a common analogy structure.

Another common structure for analogy is “A is to B as C is to D.”

For example:

Gordon Ramsay is to cooking as Meryl Streep is to acting.

Analogy Writing Exercise

Analogies are some of the most common literary devices, alongside similes and metaphors. Here’s an exercise for writing one yourself.

On a blank sheet of paper: write down the first four nouns that come to mind. Try to use concrete, visual nouns. Then, write down a verb. If you struggle to come up with any of these, any old word generator on the internet will help.

The only requirement is that two of your four nouns should be able to perform the verb. A dog can swim, for example, but it can’t fly an airplane.

Your list might look like this:

Verb: Fall
Nouns: Rain, dirt, pavement, shadow

An analogy you create from this list might be: “his shadow falls on the pavement the way rain falls on the dirt in May.