Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
battle-ax is a noun meaning "a broadax used as a weapon". It carries 2 recorded senses.
a broadax used as a weapon
a sharp-tongued domineering wife
Definitions, synonyms and semantic relations for battle-ax come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.