Possible Duplicate:
Do you use “a” or “an” before acronyms?
Why do we write 'He has an MA' and not ' a MA' even though MA does not begin with a vowel? Can anybody give me anymore examples like it?
Possible Duplicate:
Do you use “a” or “an” before acronyms?
Why do we write 'He has an MA' and not ' a MA' even though MA does not begin with a vowel? Can anybody give me anymore examples like it?
We write "an MA" rather than "a MA" because the choice of article is decided by pronunciation and "M" is pronounced with an initial vowel sound.
Other examples: