Aunt. That's a ticklish one. When I was growing up we called our mom's sisters, Auntie (read antie). During a time of being stationed in Abiline Texas, our oldest started saying aunt (read ont). Then we started homeschooling and phonetically it is ont, so now we say Aunt (read ont), although I still call my one remaining Aunt, Antie!
We always thought it was funny when I moved to New Orleans, that people would say Ont for Aunt, instead of Ant for Aunt, like they were putting on airs. Then they would tease me for saying pin and pen exactly alike...while they made a sound difference. Mary, marry and merry all get pronounced alike out of my mouth, but each are different in New Orleans.