1. ಬೂತಗನ್ನಡಿ

    ♪ būtagannaḍi
      noun
    1. a lense, having convex surface on both sides. That magnifies the object seen through it; a magnifying glass.

  2. ಭೂತಗನ್ನಡಿ

    ♪ bhūtagannaḍi
      noun
    1. a concave mirror that magnifies the images of objects.
    2. (loosely) a lens that makes an object look much bigger than actually it is, when seen through it; a magnifying glass.