Thesaurus

thesauri
In general usage, a thesaurus is a reference work that lists words grouped together according to similarity of meaning (containing synonyms and sometimes antonyms), in contrast to a dictionary, which provides definitions for words, and generally lists them in alphabetical order.wikipedia
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Dictionary

dictionariesonline dictionaryList of English dictionaries
In general usage, a thesaurus is a reference work that lists words grouped together according to similarity of meaning (containing synonyms and sometimes antonyms), in contrast to a dictionary, which provides definitions for words, and generally lists them in alphabetical order. From the 16th to the 19th centuries, the term "thesaurus" was applied to any dictionary or encyclopedia, as in the Thesaurus Linguae Latinae (Dictionary of the Latin Language, 1532), and the Thesaurus Linguae Graecae (Dictionary of the Greek Language, 1572).
There are other types of dictionaries that do not fit neatly into the above distinction, for instance bilingual (translation) dictionaries, dictionaries of synonyms (thesauri), and rhyming dictionaries.

Roget's Thesaurus

thesaurusRoget's International ThesaurusRoget's ''Thesaurus
The main purpose of such reference works is for users "to find the word, or words, by which [an] idea may be most fitly and aptly expressed," quoting Peter Mark Roget, author of Roget's Thesaurus.
Roget's Thesaurus is a widely used English-language thesaurus, created in 1805 by Peter Mark Roget (1779–1869), British physician, natural theologian and lexicographer.

Reference work

reference bookReferencereference books
In general usage, a thesaurus is a reference work that lists words grouped together according to similarity of meaning (containing synonyms and sometimes antonyms), in contrast to a dictionary, which provides definitions for words, and generally lists them in alphabetical order.
Reference works include dictionaries, encyclopedias, almanacs, atlases, bibliographies, biographical sources, catalogs such as library catalogs and art catalogs, concordances, directories such as business directories and telephone directories, discographies, filmographies, glossaries, handbooks, indices such as bibliographic indices and citation indices, manuals, research guides, thesauruses, and yearbooks.

Synonym

synonymssyn.synonymous
In general usage, a thesaurus is a reference work that lists words grouped together according to similarity of meaning (containing synonyms and sometimes antonyms), in contrast to a dictionary, which provides definitions for words, and generally lists them in alphabetical order.
A thesaurus lists similar or related words; these are often, but not always, synonyms.

Opposite (semantics)

antonymantonymsopposite
In general usage, a thesaurus is a reference work that lists words grouped together according to similarity of meaning (containing synonyms and sometimes antonyms), in contrast to a dictionary, which provides definitions for words, and generally lists them in alphabetical order.

Amarakosha

AmarakośaAmara-KoshaAmara Kosha
In Sanskrit, the Amarakosha is a thesaurus in verse form, written in the 4th century.
The Amarakosha (Devanagari: अमरकोशः, IAST: Amarakośa) is the popular name for Namalinganushasanam (Devanagari: नामलिङ्गानुशासनम्, IAST: Nāmaliṅgānuśāsanam) a thesaurus in Sanskrit written by the ancient Indian scholar Amarasimha.

Word-sense disambiguation

word sense disambiguationdisambiguationdisambiguate
Thesauri have been used to perform automatic word-sense disambiguation and text simplification for machine translation systems.
Different dictionaries and thesauruses will provide different divisions of words into senses.

Keyword AAA

Keyword AAA is a thesaurus created by the State Records Authority of New South Wales, Australia.

ISO 25964

ISO 25964-1standards for thesaurus construction
ISO 25964 is the international standard for thesauri, published in two parts as follows:

Tesoro de la lengua guaraní

Guarani language thesaurusTesoro de la lingua guaraní
The Spanish word "tesoro" means both "treasure" and "thesaurus", and makes this title a double entendre.

Definition

definitionsdefineddefine
In general usage, a thesaurus is a reference work that lists words grouped together according to similarity of meaning (containing synonyms and sometimes antonyms), in contrast to a dictionary, which provides definitions for words, and generally lists them in alphabetical order.

Peter Mark Roget

RogetPaul RogetPeter Roget
The main purpose of such reference works is for users "to find the word, or words, by which [an] idea may be most fitly and aptly expressed," quoting Peter Mark Roget, author of Roget's Thesaurus.

Library science

librarianshiplibraryLibrary and Information Science
In library science and information science, thesauri have been widely used to specify domain models.

Information science

Information SciencesInformation StudiesInformation Science and Engineering
In library science and information science, thesauri have been widely used to specify domain models.

New Latin

Neo-LatinModern LatinLatin
The word "thesaurus" is derived from 16th-century New Latin, in turn from Latin thēsaurus, which is the Latinisation of the Greek θησαυρός (thēsauros), "treasure, treasury, storehouse".

Latin

Latin languageLat.la
The word "thesaurus" is derived from 16th-century New Latin, in turn from Latin thēsaurus, which is the Latinisation of the Greek θησαυρός (thēsauros), "treasure, treasury, storehouse".

Latinisation of names

LatinizedLatinisedlatinisation
The word "thesaurus" is derived from 16th-century New Latin, in turn from Latin thēsaurus, which is the Latinisation of the Greek θησαυρός (thēsauros), "treasure, treasury, storehouse".

Ancient Greek

GreekClassical GreekGr.
The word "thesaurus" is derived from 16th-century New Latin, in turn from Latin thēsaurus, which is the Latinisation of the Greek θησαυρός (thēsauros), "treasure, treasury, storehouse".

Douglas Harper

Harper
Douglas Harper derives it from the root of the Greek verb τιθέναι tithenai, "to put, to place."

Robert S. P. Beekes

R. S. P. BeekesRobert BeekesBeekes
Robert Beekes rejected an Indo-European derivation and suggested a Pre-Greek suffix *-ar w o-.

Proto-Indo-European language

Proto-Indo-EuropeanPIEIndo-European
Robert Beekes rejected an Indo-European derivation and suggested a Pre-Greek suffix *-ar w o-.

Pre-Greek substrate

Pre-GreekPre-Greek originPre-Hellenic
Robert Beekes rejected an Indo-European derivation and suggested a Pre-Greek suffix *-ar w o-.

Encyclopedia

encyclopaediaencyclopedistencyclopedic
From the 16th to the 19th centuries, the term "thesaurus" was applied to any dictionary or encyclopedia, as in the Thesaurus Linguae Latinae (Dictionary of the Latin Language, 1532), and the Thesaurus Linguae Graecae (Dictionary of the Greek Language, 1572).

Thesaurus Linguae Latinae

From the 16th to the 19th centuries, the term "thesaurus" was applied to any dictionary or encyclopedia, as in the Thesaurus Linguae Latinae (Dictionary of the Latin Language, 1532), and the Thesaurus Linguae Graecae (Dictionary of the Greek Language, 1572).