n., pl., -ies.
- A reference book containing an alphabetical list of words, with information given for each word, usually including meaning, pronunciation, and etymology.
- A book listing the words of a language with translations into another language.
- A book listing words or other linguistic items in a particular category or subject with specialized information about them: a medical dictionary.
- Computer Science.
- A list of words stored in machine-readable form for reference, as by spelling-checking software.
- An electronic spelling checker.
[Medieval Latin dictiōnārium, from Latin dictiō, dictiōn-, diction. See diction.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.