ablative case(grammatical case used to indicate movement away from something, removal, separation, source) noun [UK: ˈæ.blə.tɪv keɪs] [US: ˈæ.blə.tɪv ˈkeɪs]
instrumental case(case to express agency or means) noun [UK: ˌɪn.strʊ.ˈmen.tl̩ keɪs] [US: ˌɪn.strə.ˈmen.tl̩ ˈkeɪs]