There are words that some British accents pronounce with an initial consonant while Americans it with a vowel sound, so accordingly Brits use the 'a' article wh

There are words that some British accents pronounce with an initial consonant while Americans it with a vowel sound, so accordingly Brits use the 'a' article while Americans use 'an'. A case where accent changes the grammar of a sentence. Similar to the name 'Herb' vs the vegetative 'herb'. A Herb vs an herb.