Spelling suggestion is a feature of many computer software applications used to suggest plausible replacements for words that are likely to have been misspelled.
Spelling suggestion features are commonly included in Internet search engines, word processors, spell checkers, medical transcription, automatic query reformulation, and frequency-log statistics reporting.
Algorithms
Algorithms for spelling suggestion may incorporate several information resources to determine candidates for misspelled words and the words' likely correct replacements, including the following:
References
Spelling suggestion Wikipedia(Text) CC BY-SA