from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A key that opens every one of a given set of locks. Also called passkey.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A key designed to open a set of several locks; a passkey
from the GNU version of the Collaborative International Dictionary of English
- n. a key adapted to open several locks differing somewhat from each other; figuratively, a rule or principle of general application in solving difficulties.
from The Century Dictionary and Cyclopedia
- n. A key which opens (masters) many locks so differently constructed that the key proper to each will open none of the others.
- n. Figuratively, a general clue to lead out of many difficulties; a guide to the solution of many questions or doubts.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. key that secures entrance everywhere
Sorry, no etymologies found.
Using a master key I discovered on the ring l'd taken from Graffius, I conducted a fruitless search of each room.