CORNERWISE Meaning of CORNERWISE in English ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ adverbor cor·ner·ways ˈ ̷ ̷ ̷ ̷ˌwāz : with the corner set in front : diagonally Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012