A secret word or phrase that one uses to gain admittance or access to information.
Computer Science A sequence of characters that one must input to gain access to a file, application, or computer system. Also called passkey.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.