I hate to ask a similar question twice, but I am unable to describe the relationship between slain : snail :: flair : frail. I know the first three of five letters are switched, so would my relationship phrase be "switched" or "is switched to?"

They're anagrams.

http://www.fun-with-words.com/anagrams.html

Thank you, and this was my final question.

You're welcome.

To describe the relationship between "slain" and "snail" in the analogy "slain : snail," you can say that the first three letters of "slain" are rearranged to form the word "snail." So, you can describe the relationship as "rearranged" or "is rearranged to."

Now, let's analyze the analogy "flair : frail." Similarly, the first three letters of "flair" are rearranged to form the word "frail." Therefore, you can describe the relationship between "flair" and "frail" as "rearranged" or "is rearranged to."

In both cases, when describing the relationship between the words in the analogy, you can use the term "rearranged" or "is rearranged to" to indicate that the first three letters of one word are switched to form another word in the analogy.