>>>It's the same in English- the indefinite article a becomes an before a word starting with a vowel.
>>>
>>> For u it depends how it is pronounced - I think
>>>
>>>A U-Turn
>>>An unrelated matter
>>
>>On a related note, same goes for words beginning with an aitch - "an honorable exception".
>>
>>Btw, a question for the anglophone majority here: is there a word in English which begins with a "u" and has it pronounced as u? Not as uh as in under, not as yoo as in universe, but as u as in butcher, lubricate?
>
>I thought 'U' was pronounced as in 'u' of Universe ?

I'm not sure if I understood what you mean but I just tried Universe with babylon and it puts "Y" at pronounce. In turkish every letter read like write. These are nightmare for me with english: different writing and pronouncing and irregular verbs... :(