The difference between A and AN in English

The difference between A and AN in English. We learn when to use A and when to use An before nouns, adjectives, and adverbs in English. We have included many examples including exceptions to rule such as words like university and hour and why they are different. Remember, it does not only depend on the next word being a consonant or vowel. It is the SOUND at the beginning of the next word that is important. There is a summary chart at the end.