S: (v) riddle, screen (separate with a riddle, as grain from chaff)
S: (v) permeate, pervade, penetrate, interpenetrate, diffuse, imbue, riddle (spread or diffuse through) "An atmosphere of distrust has permeated this administration"; "music penetrated the entire building"; "His campaign was riddled with accusations and personal attacks"
S: (v) solve, work out, figure out, puzzle out, lick, work (find the solution to (a problem or question) or understand the meaning of) "did you solve the problem?"; "Work out your problems with the boss"; "this unpleasant situation isn't going to work itself out"; "did you get it?"; "Did you get my meaning?"; "He could not work the math problem"