The analogy that fits with "yearn: longing" is "enjoy: pleasure." In this analogy, "enjoy" is a verb and "pleasure" is a noun with a similar meaning. To determine this, you can compare the relationships between the words in the analogy. "Yearn" and "longing" have a similar relationship as "enjoy" and "pleasure" do, as both verbs express a desire or strong positive feeling paired with a corresponding noun that represents that feeling.
