Hidden Paper Design, Seen When Held to the Light
This page is the CodyCross answer for the clue below from TV Station, Group 607, Puzzle 1 (Commercials).
Question is: Hidden Paper Design, Seen When Held to the Light
and the answer is: WATERMARK
Word Meaning:
WATERMARK — A translucent design impressed on the surface of paper and visible when the paper is held to the light.
Definitions from Wiktionary.