Synonyms and related words :
burin, clarifier, colander, cradle, cribble, die, engraving tool, etching ball, etching ground, etching needle, etching point, filter, graver, intaglio, lixiviator, metronome, needle, oscillator, pendulum, percolator, point, punch, purifier, refiner, refinery, riddle, rocking chair, rocking stone, scorper, screen, seal, seesaw, shuttle, shuttlecock, sieve, sifter, stamp, strainer, style, swing, teeter, teeter-totter, teeterboard, teetery-bender, vibrator, winnow, winnowing basket, winnowing fan, winnowing machine