to invert /ɪnˈvɜːrt/ /ɪnˈvɜːt/
to turn something upside down /tə ˈtɜːrn ˈsʌmθɪŋ ˈʌpsaɪd ˈdaʊn/ /tə ˈtɜːn ˈsʌmθɪŋ ˈʌpsaɪd ˈdaʊn/
to capsize /ˈkæpˌsaɪz/ /kæpˈsaɪz/