Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
outwork is a noun meaning "subsidiary defensive structure lying outside the main fortified area". It carries one recorded sense.
subsidiary defensive structure lying outside the main fortified area
“the outworks of the castle”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for outwork come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.