Analogy
Explaining one thing through another familiar thing.
Use analogy to make abstract ideas easier to grasp.
Understanding analogy
Analogy borrows an audience's existing understanding of one thing to explain something new. This works because people do not build understanding from scratch, they extend understanding they already have. A good analogy compresses a long explanation into a single, already-familiar structure, which is why it often does more work than a paragraph of direct description.
The risk with analogy is stretching it past the point it holds. Every analogy breaks down somewhere, and a sophisticated audience will look for the seam. The strongest analogies are used to open understanding quickly, then set aside before someone pushes on the parts where the comparison stops working.
What familiar object, process, or role works the same way your idea does? Complete: this is like ___ for ___.
How to strengthen analogy
Choose a comparison the specific audience already understands well, not one that is only familiar to you.
Use the analogy to introduce the idea, then move to a direct explanation rather than leaning on it indefinitely.
Test the analogy by asking where it breaks down, and be ready to acknowledge that limit if asked.
Combine analogy with other tools
No single tool carries a message on its own. Analogy works best alongside these.