Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
working-class is an adjective meaning "of those who work for wages especially manual or industrial laborers". It carries 2 recorded senses.
of those who work for wages especially manual or industrial laborers
“party of the propertyless proletariat”
working for hourly wages rather than fixed (e.g. annual) salaries
“working-class occupations include manual as well as industrial labor”
Definitions, synonyms and semantic relations for working-class come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.