What's the difference in pronunciation between kuàir and kuàr? 块儿 (kuàir) = a slice, etc.
跨儿 (kuàr) = "trans", in the sense of "transgender".


Reading these aloud, I don't notice a distinction in pronunciation, but it seems like there should be.

Question: What's the difference in pronunciation between kuàir and kuàr?
They have the same pronunciation.

The wiki page on Erhua lists the IPA of both finals ("uar" and "uair") to be [wɐʵ]