What do you mean by see through register on a currency note?

A see-through register on a currency note refers to a security feature that consists of a transparent or semi-transparent area, often containing intricate designs or patterns that align precisely when viewed against the light. This feature helps to authenticate the note and prevent counterfeiting, as it is difficult to replicate accurately. When held up to the light, the designs in the see-through register should match perfectly, enhancing the note's overall security.