to overcome /ˈoʊvərˌkʌm/ /ˌəʊvəˈkʌm/
to conquer /ˈkɑŋkər/ /ˈkɒŋkə/
to overpower
to vanquish /ˈvæŋkwɪʃ/ /ˈvæŋkwɪʃ/
