>>>>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 ?
>
>In in one. I was trying to think of an example and didn't think of that.

Ubiquitous
Ullyses
Ukele
Useless
University
Unicorn
Uniform
Unique
In fact lots of 'Uni's - Latin one
Seems to me it's mainly words starting with 'un' which imply a negative that are not pronounced 'U'
e.g Unimaginative,Unlikely etc....