This Machine Created Hard-to-Crack Codes in WWII
This page is the CodyCross answer for the clue below from Past and Present Tech, Group 1449, Puzzle 4 (Air Conditioning).
Question
This Machine Created Hard-to-Crack Codes in WWII
Answer
ENIGMA
Word Meaning:
ENIGMA — Something or someone puzzling, mysterious or inexplicable.
Definitions from Wiktionary.