* "U" can sometimes make the short "e" sound:
* "u" at the end of a word: This is common in words like "sun", "run", "fun", "but", "much", "such"
* "u" followed by "l" at the end of a word: Like "pull", "full", "bull", "skull"
* Some other cases: There are some less common words where "u" makes the short "e" sound, like "bury", "busy", "build"
* "U" usually doesn't make the short "e" sound: It's usually found in words like "cup", "flute", "music", where it has a different sound altogether.
Therefore, the best answer is:
There aren't many words where "u" makes the short "e" sound. The most common examples are those ending in "u" or "ul", like "sun", "run", "but", and "full".