>>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".

Yes, it depends on whether the h is pronounced
not pronouced: an honorable exception

pronounced: a house

>
>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?