Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
non-issue is a noun meaning "the state of something that has outlived its relevance". It carries one recorded sense.
the state of something that has outlived its relevance
Definitions, synonyms and semantic relations for non-issue come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.