Synonyms for Crenelate (same or very similar meaning)
WordNet sense 1 (supply with battlements):
crenel, crenellateWordNet sense 2 (having or resembling repeated square indentations like those in a battlement):
castellated, crenelated, embattled, battlemented, castled, crenellated, indentedWordNet sense 3 (not plain; decorative or ornamented):
fancyFrom the ODE community, based on WordNetadd/edit