Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
mischief-making is a noun meaning "reckless or malicious behavior that causes discomfort or annoyance in others". It carries one recorded sense.
reckless or malicious behavior that causes discomfort or annoyance in others
Definitions, synonyms and semantic relations for mischief-making come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.