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