Use It to See Across Trenches or in a Submarine
This page is the CodyCross answer for the clue below from Paris, Group 247, Puzzle 5 (La Closerie Des Lilas).
Question is: Use It to See Across Trenches or in a Submarine
and the answer is: PERISCOPE
Word Meaning:
PERISCOPE — A form of viewing device that allows the viewer to see things at a different height level and usually with minimal visibility.
Definitions from Wiktionary.