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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 ...
Lexicon-based changes include changes made by substituting words with their synonyms or closely related words without significantly altering the sentence structure. An example could be changing "quick" to "fast" in a sentence, where both adjectives convey a similar speed attribute.
In cognitive psychology, fast mapping is the term used for the hypothesized mental process whereby a new concept is learned (or a new hypothesis formed) based only on minimal exposure to a given unit of information (e.g., one exposure to a word in an informative context where its referent is present).
In particular, words which appear in similar contexts are mapped to vectors which are nearby as measured by cosine similarity. This indicates the level of semantic similarity between the words, so for example the vectors for walk and ran are nearby, as are those for "but" and "however", and "Berlin" and "Germany".
Skimming is a process of speed reading that involves visually searching the sentences of a page for clues to the main idea or when reading an essay, it can mean reading the beginning and ending for summary information, then optionally the first sentence of each paragraph to quickly determine whether to seek still more detail, as determined by the questions or purpose of the reading.
For example, he might suggest that you’re more likely to be happy by setting your expectations low or that you’ll sabotage yourself if you are envious of others and pity yourself. He was quick ...
For example, given the word indefinitely, identify that the leading "in" is a prefix that can be removed. Many of the same approaches mentioned earlier apply, but go by the name affix stripping . A study of affix stemming for several European languages can be found here.