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.
Why would you use Ukraine as the example word instead of uniform?
I’m pretty sure I’ve heard “the Ukraine” been pronounced both ways often enough.
https://en.m.wikipedia.org/wiki/Ukraine#%3A~%3Atext=US+ambassador+William+Taylor+said%2Cboth+grammatically+and+politically+incorrect.