Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
above-mentioned is an adjective meaning "mentioned or named earlier in the same text". It carries one recorded sense.
mentioned or named earlier in the same text
Definitions, synonyms and semantic relations for above-mentioned come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.