spellchecker
noun
spell·check·er
ˈspel-ˌche-kər
variants
or spell-checker
plural spellcheckers or spell-checkers
: a computer program or function (as in a word processor) that identifies possible misspellings in a block of text by comparing the text with a database of accepted spellings
called also spell-check, spelling checker
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Merriam-Webster unabridged
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