Siri will not understand one particular word I say and its driving me nuts
Solution 1:
Man, I understand your problem - even I used to have similar problems. But you can try this trick for short words.
Instead of pronouncing the whole word, just read out the letters. For example, instead of Coles, spell C-O-L-E-S and it works just fine. I know this isn’t the best solution, but it works fine for short words. Also, try changing the Siri language to UK English, it works a lot better according to me.