1. (noun)feat, effort, exploit a notableachievement "he performed a great feat"; "the book was her finest effort"
2. (verb)exploit, work use or manipulate to one's advantage "He exploit the new taxation system"; "She knows how to work the system"; "he works his parents for sympathy"
3. (verb)exploit, tap draw from; makegood use of "we must exploit the resources we are given wisely"
4. (verb)overwork, exploit work excessively hard "he is exploiting the students"