WEED OUT

{v.} 1. To remove what is unwanted, harmful, or not good enough from. * /Mother weeded out the library because there were too many books./ * /Many colleges and universities weed out their freshman classes to make room for better students./ 2. To take (what is not wanted) from a collection or group; remove (a part) for the purpose of improving a collection or group; get rid of. * /The coach is weeding out the weak players this week./ * /The teacher told Elizabeth to read over her English composition and weed out every sentence that was not about the subject./