Here's why:
* Dictionaries are organized alphabetically. So, the word that comes after "uniform" depends on the first letter of the following word.
* There are many words starting with "U". For example, "unimportant", "unify", "unique", "universe" are all words that could come after "uniform" in a dictionary.
To find the actual word, you'd need to look at the specific dictionary you're using. 😊