Quote Originally Posted by kalli View Post
Dear students, "u" is a semi-vowel;this means that sometimes it behaves as a vowel like in "umbrella","ultimatum","underproduction"etc when an"an" is necessary.Other times it behaves like a consonant as in "university","union","unique" when an "a" is needed.Practice will help!
Kalli is absolutely right and so is of course,BobK.

Not only does that happen to U but to E too...ex: a European country, an abbreviations like an MP..