Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
spell-checker is a noun meaning "an electronic dictionary in a word processor that can be used to catch misspelled words". It carries one recorded sense.
an electronic dictionary in a word processor that can be used to catch misspelled words
Definitions, synonyms and semantic relations for spell-checker come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.