Companion of Thunder
This page is the CodyCross answer for the clue below from Larger than Life, Group 2154, Puzzle 5 (Panama Canal).
Question is: Companion of Thunder
and the answer is: LIGHTNING
Word Meaning:
LIGHTNING — A flash of light produced by short-duration, high-voltage discharge of electricity within a cloud, between clouds, or between a cloud and the earth.
Definitions from Wiktionary.