obasan

noun2

1. •
   A Japanese aunt.

   • "This woman really my aunt, my obasan, but I call her my grandmother, obaasan.[…]" — 1985
2. •
   A Japanese middle-aged woman.

   • The boys resist the Japanese names by which the obasans of the camp address them as willfully as they renounce any identification with the fragmented body of the aged grandfather. — 2001