Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
sou'easter is a noun meaning "a strong wind from the southeast". It carries one recorded sense.
a strong wind from the southeast
Definitions, synonyms and semantic relations for sou'easter come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.