Central __; System for Securing All Doors at Once
This page is the CodyCross answer for the clue below from Professions, Group 1531, Puzzle 5 (Aircraft Pilot).
Question is: Central __; System for Securing All Doors at Once
and the answer is: LOCKING
Word Meaning:
LOCKING — gerund of lock: the act by which something is locked.
Definitions from Wiktionary.