Comment by Silamoth
3 days ago
Regardless of American vs. British spellings, those are not the same sound. Some British people may pronounce them the same. Americans definitely pronounce them differently, though. For instance, the word “water” has a hard “r” sound at the end; Americans don’t pronounce it “watuh” like some British people do.
They are two names for the same sound. There is no particle "er" in American English. There could be one, theoretically, but there isn't.