@contrex,
contrex wrote:
You use 'an' before words starting with a letter which is a vowel, (a,e,i,o,u) and 'a' before words starting with the other letters.
I know you know very well when to use a or an, Contrex. But your expression above is easily to be misunderstood by persons like Pearlylustre, e.g. the word Europe, which starts with "E", a vowel if seen as
a letter itself!
Of course you tended to mean a"vowel" sound in the word as a whole.