What is the analogy? broom:sweep:brush:?

What does a broom do? A broom sweeps.

What does a brush do? A brush scrubs.

To find the analogy in the given question, we need to identify the relationship between the words. In this case, we have "broom" and "sweep," which are related in the sense that a broom is a tool used for sweeping.

To find the missing term in the analogy, we need to look for a word that relates to "brush" in a similar way. Thinking about the function of a brush, we can see that a brush is also a tool used for a specific purpose. Based on this, the missing term in the analogy is likely to be a tool used for a different purpose.

In this case, an appropriate choice for the missing term can be "paint." A brush is used for painting, just as a broom is used for sweeping. Hence, the analogy can be expressed as: broom is to sweep as brush is to paint.