| Main Entry: | |
| Part of Speech: | noun |
| Definition: | superficial impurities, dirt |
| Synonyms: | algae, crust, dross, film, froth, residue, scruff, spume, waste |
| Antonyms: | cleanliness |
| Main Entry: | algae |
| Part of Speech: | noun |
| Definition: | rootless, leafless plants living in water |
| Synonyms: | dulse, kelp, scum, seaweed |
| Main Entry: | bottom feeder |
| Part of Speech: | noun |
| Definition: | lowlife |
| Synonyms: | base person, bottom fish, hungry puppy, lowest common denominator, riffraff, scum*, slopsucker |
| Main Entry: | cur |
| Part of Speech: | noun |
| Definition: | rotten, lowly animate being |
| Synonyms: | black sheep, blackguard, bum, cad, coward, dog*, good-for-nothing, heel, hound, ne'er-do-well, rat, riffraff, scoundrel, scum*, skunk, snake*, stinker, toad, villain, worm, wretch, yellow dog |
| Main Entry: | dregs |
| Part of Speech: | noun |
| Definition: | bad person |
| Synonyms: | loser, outcast, rabble, riffraff, scum, trash |
| Main Entry: | film |
| Part of Speech: | noun |
| Definition: | coating, tissue; mist |
| Synonyms: | blur, brume, cloud, coat, covering, dusting, fabric, foil, fold, gauze, haze, haziness, integument, layer, leaf, membrane, mistiness, nebula, obscuration, opacity, partition, pellicle, scum*, sheet, skin, transparency, veil, web |
| Main Entry: | foam |
| Part of Speech: | noun |
| Definition: | bubbles formed from a liquid |
| Synonyms: | cream, fluff, froth, head, lather, scum, spray, spume, suds, surf, yeast |
| Main Entry: | froth |
| Part of Speech: | noun |
| Definition: | lather, bubbles |
| Synonyms: | barm, ebullition, effervescence, fizz, foam, head, scud, scum, spindrift, spray, spume, suds, yeast |
| Main Entry: | impurity |
| Part of Speech: | noun |
| Definition: | contaminant |
| Synonyms: | adulteration, contamination, corruption, defilement, dirt, filth, foreign matter, grime, pestilence, poisoning, pollutant, pollution, scum, stain, taint, uncleanness |