Why you should know: The ‘a’ vs ‘an’ conundrum is not about what letter actually begins the word, but instead about how the sound of the word starts.
For example, the ‘h’ in ‘hour’ is silent, so you would say ‘an hour’ and not ‘a hour’. A trickier example is Ukraine: because the ‘U’ is pronounced as ‘You’, and in this case the ‘y’ is a consonant, you would say “a Ukraine” and not “an Ukraine”.
Tip: when in doubt, sound it out(loud).
Thank you for coming to my TED talk.
The vowel sound rule (or a related one) is also used for which vowel sound goes at the end of the definite article “the”, that is, the sound the ‘e’ makes.
Usually the last vowel sound of “the” is a schwa, arguably the most common vowel sound in English, but before another vowel sound, it becomes “ee”, or what other European languages might write “i”.
There might even be an intrusive y (or j as used in Norse and Germanic languages) depending on the speaker. i.e. “The apple” may well be pronounced “thi(y)apple”, and a fellow native speaker wouldn’t notice. “The ball” has the usual schwa. As does “the usual schwa” for that matter.
What about when the next word starts with a schwa? In practice it seems like you change one or the other but not both: “The economy” becomes either “thee uh-conomy” or “tha ee-conomy” but not either combined alternative. Does this rule hold?
I had never heard this spelled out or identified the pattern myself, even though I’d noticed there were differences. Thank you for sharing! This answers questions I didn’t even know I had.
I barely understood this but I’ve also tried to explain this very thing. I believe it was actually on a post about the pronunciation of ‘Data’ because I felt there were differences to each but could not explain why for the life of me.