You use a dictionary to look up the meaning of a word.
- An example of dictionary is YourDictionary.com.
- An example of dictionary is Webster’s New World College Dictionary.
- An example of dictionary is a book with English to Italian translations.
- An example of dictionary is a book with legal codes and regulations.
pl. – ar ies
- 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 of dictionary
Medieval Latin dictionarium from Late Latin dictio: see diction
pl.dic tion ar ies
- A reference work containing an alphabetical list of words, with information given for each word, usually including meaning, pronunciation, and etymology.
- A reference work containing an alphabetical list of words in one language with their translations in another language.
- A reference work containing an alphabetical list of words in a particular category or subject with specialized information about them: a medical dictionary.
- A list of words stored in machine-readable form for reference, as by spelling-checking software.
Origin of dictionary
- A reference work with a list of words from one or more languages, normally ordered alphabetically and explaining each word’s meaning and sometimes containing information on its etymology, usage, translations, and other data.
- By extension, any work that has a list of material organized alphabetically; e.g. biographical dictionary, encyclopedic dictionary.
- (computing) An associative array, a data structure where each value is referenced by a particular key, analogous to words and definitions in a physical dictionary.
(third-person singular simple present dictionaries, present participle dictionarying, simple past and past participle dictionaried)
- To look up in a dictionary
- To add to a dictionary
- (intransitive) To appear in a dictionary
Medieval Latin dictionarium, from Latin dictionarius, from dictio (“speaking”), from dictus, perfect past participle of dīcō (“speak”) + -arium (“room, place”).
dictionary – Computer Definition
In cracking terms, a dictionary is a word list that plugs into cracking programs as a means of “breaking” passwords. These dictionaries contain real words and those that individuals tend to choose for passwords. Because it takes only a few minutes to go through hundreds of thousands of words in a dictionary to crack a password, computer users are warned not to select a word that may be commonly found in a dictionary. In theory, users tend to select passwords that they have used previously. A popular password is NCC1701, which was the registry number for Captain James T. Kirk’s starship, the Enterprise, on the original “Star Trek” television series. Children’s names and anniversary dates are also popular passwords.