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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, sometimes simply as lists of synonyms and antonyms.
Synonym list in cuneiform on a clay tablet, Neo-Assyrian period [1] 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 ...
Finding synonyms of words, and searching for the synonyms as well; Finding semantically related words (e.g. antonyms, meronyms, hyponyms, hypernyms) Finding all the various morphological forms of words by stemming each word in the search query; Fixing spelling errors and automatically searching for the corrected form or suggesting it in the results
In linguistic morphology and information retrieval, stemming is the process of reducing inflected (or sometimes derived) words to their word stem, base or root form—generally a written word form. The stem need not be identical to the morphological root of the word; it is usually sufficient that related words map to the same stem, even if this ...
However, most concept search engines work best for certain kinds of queries: Effective queries are composed of enough text to adequately convey the intended concepts. Effective queries may include full sentences, paragraphs, or even entire documents. Queries composed of just a few words are not as likely to return the most relevant results.
The advice in this guideline is not limited to the examples provided and should not be applied rigidly. If a word can be replaced by one with less potential for misunderstanding, it should be. [1] Some words have specific technical meanings in some contexts and are acceptable in those contexts, e.g. claim in law.
An example might be transforming an active voice sentence like "The cat chased the mouse" into a passive voice "The mouse was chased by the cat," where both the sentence structure and some words are altered. Syntax-based changes are primarily focused on the structure of the sentence rather than the words themselves. For example, changing a ...
The December 2020 version of the review stated that the "evidence [that the treatment saves babies] is robust, regardless of resource setting (high, middle or low)" and that further research should focus on "specific understudied subgroups such as multiple pregnancies and other high-risk obstetric groups, and the risks and benefits in the very ...