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Thesaurus. A thesaurus ( pl.: thesauri or thesauruses ), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms ...
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 .
A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are synonymous. The standard test for synonymy is substitution: one form can be ...
The Historical Thesaurus of English ( HTE) is a complete database of all the words in the Oxford English Dictionary and other dictionaries (including Old English ), arranged by semantic field and date. In this way, the HTE arranges the whole vocabulary of English, from the earliest written records in Old English to the present, alongside dates ...
WordNet is a lexical database of semantic relations between words that links words into semantic relations including synonyms, hyponyms, and meronyms. The synonyms are grouped into synsets with short definitions and usage examples. It can thus be seen as a combination and extension of a dictionary and thesaurus.
The word "dictionary" was invented by an Englishman called John of Garland in 1220 – he had written a book Dictionarius to help with Latin "diction". [22] An early non-alphabetical list of 8000 English words was the Elementarie, created by Richard Mulcaster in 1582.
OpenThesaurus. OpenThesaurus is a multilingual thesaurus project built in open collaboration by volunteers. Its data is freely available as open content . It is known for its usage in the applications OpenOffice.org, LibreOffice, KWord, Lyx, and Apple Dictionary .
Thesaurus (information retrieval) In the context of information retrieval, a thesaurus (plural: "thesauri") is a form of controlled vocabulary that seeks to dictate semantic manifestations of metadata in the indexing of content objects. A thesaurus serves to minimise semantic ambiguity by ensuring uniformity and consistency in the storage and ...