Plural of encoding; the systems, formats, or methods used to represent information in a special code.
From 'encode' + '-ing' (gerund suffix) + '-s' (plural). This became a standard technical term in computing and linguistics by the late 20th century.
Different encodings are why your grandpa's old emails sometimes look like garbage on your phone—UTF-8, ASCII, and others all speak different 'languages' to computers!
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