[n] the act of carefully weeding out unwanted things or people; "the department got a good comb-out"
[n] the act of removing tangles from you hair with a comb
[v] smoothen and neaten with or as with a comb; "comb your hair before dinner"; "comb the wool"
[v] remove unwanted elements; "The company weeded out the incompetent people"; "The new law removes the old inequities"