to profit /ˈprɑːfɪt/ /ˈprɒfɪt/
to gain /geɪn/ /ɡeɪn/
to make a profit
to take advantage of /tə tˈeɪk ɐdvˈæntɪdʒ ʌv/ /tə tˈeɪk ɐdvˈantɪdʒ ɒv/