to execute /ˈeksɪkjuːt/ /ˈeksɪkjuːt/
to carry out /ˈkæri aʊt/ /ˈkæri aʊt/
to implement /ˈɪmpləˌmɛnt/ /ˈɪmplɪmənt/
to perform /pərˈfɔːrm/ /pəˈfɔːm/
to fulfill /fʊlˈfɪl/ /fʊlˈfɪl/