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 problem is not the rule, but that the many exceptions apply to the written word, whereas they are based on phonological reasons and the same letter can have several pronunciations in English.
yeah… like “a house” vs. “an honor” It’s easy: the +n is a binding sound to avoid a hard stop between two words when the first ends in a vowel and the second begins with one. A hard stop only applies to spoken language, so the +n should be applied where the spoken next sound is a vowel.
For example: “A “large hadron collider”-like setup”, vs. “An LHC-like setup”