əˈtɛmpt kæmˈpeɪn kɔːz kɔz kɹuːˈseɪd dɹaɪv ˈɛfət ˈɛfɚt ɪnˈdɛv.ə ɛnˈdɛv.ɚ ɪnˈdɛv.ɚ ɪnˈdɛv.ə əɡˈzɝʃən ˈɛksplɔɪt ˈmuːv.mənt a notable achievement he performed a great feat the book was her finest effort use of physical or mental energy; hard work he got an A for effort they managed only with great exertion earnest and conscientious activity intended to do or accomplish something made an effort to cover all the reading material wished him luck in his endeavor she gave it a good try a series of actions advancing a principle or tending toward a particular end he supported populist campaigns they worked in the cause of world peace the team was ready for a drive toward the pennant the movement to end slavery contributed to the war effort