to fertilize /ˈfɜrtəˌlaɪz/ /ˈfɜːtɪlaɪz/
to inseminate /ɪnˈsemɪneɪt/ /ɪnˈsemɪneɪt/
to impregnate /ɪmˈpreɡneɪt/ /ˈɪmpreɡneɪt/