English Coach

scale うろこ、かさぶた、はかり、規模

- each of the small, thin horny or bony plates protecting the skin of fish and reptiles, thypically overlapping one another.

- instrument for weighing, originally a simple balance but now usually a device with an electronic or other internal weighing.

- a graduated range of value forming a standard system for measuring or grading something.

- a thick dry flake of skin

The proverb "dropped a scale from eye" means very surprising.