The Google Ngram Viewer or Google Books Ngram Viewer is an online search engine that charts the frequencies of any set of search strings using a yearly count of n-grams found in sources printed between 1500 and 2019[1][2][3][4][5] in Google's text corpora in English, Chinese (simplified), French, German, Hebrew, Italian, Russian, or Spanish.[2][6] There are also some specialized English corpora, such as American English, British English, and English Fiction.[7]
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The program can search for a word or a phrase, including misspellings or gibberish.[6] The n-grams are matched with the text within the selected corpus, optionally using case-sensitive spelling (which compares the exact use of uppercase letters),[8] and, if found in 40 or more books, are then displayed as a graph.[9]
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The Google Ngram Viewer supports searches for parts of speech and wildcards.[7] It is routinely used in research.[10][11]
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https://en.wikipedia.org/wiki/Google_Ngram_Viewer
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