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The definition of a dictionary is an online or printed resource that lists words in alphabetical order, listing the meaning, pronunciation and part of speech for the word.

(noun)

An example of dictionary is YourDictionary.com.
An example of dictionary is Webster's New World College Dictionary.

A dictionary is defined as a list of words or articles that refer to a specific subject.

(noun)

An example of dictionary is a book with English to Italian translations.
An example of dictionary is a book with legal codes and regulations.

See dictionary in Webster's New World College Dictionary

noun pl. dictionaries

a book of alphabetically listed words in a language, with definitions, etymologies, pronunciations, and other information; lexicon
a book of alphabetically listed words in a language with their equivalents in another language: a Spanish-English dictionary
any alphabetically arranged list of words or articles relating to a special subject: a medical dictionary

Origin: ML dictionarium < LL dictio: see diction

See dictionary in American Heritage Dictionary 4

noun pl. dic·tion·ar·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. A list of words stored in machine-readable form for reference, as by spelling-checking software.
b. An electronic spelling checker.

Origin:

Origin: Medieval Latin dictiōnārium

Origin: , from Latin dictiō, dictiōn-, diction; see diction

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