Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
higher-up is a noun meaning "one of greater rank or station or quality". It carries one recorded sense.
one of greater rank or station or quality
Definitions, synonyms and semantic relations for higher-up come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.