Its Gravity Is So Strong Even Light Cannot Escape

This page is the CodyCross answer for the clue below from Tracking Time, Group 1054, Puzzle 5 (Days of the Week).

Question is: Its Gravity Is So Strong Even Light Cannot Escape

and the answer is: BLACKHOLE

Word Meaning:

BLACK HOLE — A place of punitive confinement; a lockup or cell; a military guardroom.

Definitions from Wiktionary.

Its Gravity Is So Strong Even Light Cannot Escape - Tracking Time CodyCross Answers | CodyCross Solutions