CASE-HARDEN Meaning of CASE-HARDEN in English case-harden BrE AmE ˈkeɪs ˌhɑːd ə n AmE \ -ˌhɑːrd-▷ case-harden|ed d▷ case-harden|ing ‿ɪŋ▷ case-harden|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012