Synonyms of the word

dross

• n. Waste or impure matter.
• n. Worthless or trivial matter.
• n. Residue that forms on the surface of a metal from oxidation.
• n. The impurities in metal.
• n. A waste product from working with metal.
• v. (transitive) To remove dross from.

impurity

• n. The condition of being impure; because of contamination, pollution, adulteration or insufficient purification.
• n. A component or additive that renders something else impure.
• n. A state of immorality or sin; especially the weakness of the flesh: inchastity.

scoria

• n. The slag or dross that remains after the smelting of metal from an ore.
• n. (geology) Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater.

scum

• n. (uncountable) A layer of impurities that accumulates at the surface of a liquid (especially molten metal…
• n. (uncountable) A greenish water vegetation (such as algae), usually found floating on the surface of ponds.
• n. The topmost liquid layer of a cesspool or septic tank.
• n. (uncountable, slang, chiefly US) semen.
• n. (countable, derogatory, slang) A reprehensible person or persons.
• v. To remove the layer of scum from (a liquid etc.).
• v. To remove (something) as scum.
• v. To become covered with scum.
• v. (obsolete) To scour (the land, sea etc.).
• v. (obsolete) To gather together, as scum.
• v. (video games, informal) To startscum or savescum.

slag

• n. Waste material from a coal mine.
• n. Scum that forms on the surface of molten metal.
• n. Impurities formed and separated out when a metal is smelted from ore; vitrified cinders.
• n. Hard aggregate remaining as a residue from blast furnaces, sometimes used as a surfacing material.
• n. Scoria associated with a volcano.
• n. (Britain, pejorative, dated) A coward.
• n. (Britain, chiefly Cockney, pejorative) A contemptible person, a scumbag.
• n. (Britain, pejorative) A prostitute.
• n. (Britain, Australia, New Zealand, slang, pejorative) A woman (sometimes a man) who has loose morals relating…
• v. (transitive) To produce slag.
• v. (intransitive) To become slag; to agglomerate when heated below the fusion point.
• v. (transitive, with "off") To talk badly about; to malign or denigrate (someone).
• v. (intransitive, Australia, slang) To spit.

waste

• n. Excess of material, useless by-products or damaged, unsaleable products; garbage; rubbish.
• n. Excrement or urine.
• n. A waste land; an uninhabited desolate region; a wilderness or desert.
• n. A place that has been laid waste or destroyed.
• n. A large tract of uncultivated land.
• n. (historical) The part of the land of a manor (of whatever size) not used for cultivation or grazing, nowadays…
• n. A vast expanse of water.
• n. A disused mine or part of one.
• n. The action or progress of wasting; extravagant consumption or ineffectual use.
• n. Large abundance of something, specifically without it being used.
• n. Gradual loss or decay.
• n. A decaying of the body by disease; wasting away.
• n. (rare) Destruction or devastation caused by war or natural disasters; See "to lay waste".
• n. (law) A cause of action which may be brought by the owner of a future interest in property against the…
• n. (geology) Material derived by mechanical and chemical erosion from the land, carried by streams to the…
• adj. (now rare) Uncultivated, uninhabited.
• adj. Barren; desert.
• adj. Rejected as being defective; eliminated as being worthless; produced in excess.
• adj. Superfluous; needless.
• adj. Dismal; gloomy; cheerless.
• adj. Unfortunate; disappointing.
• v. (transitive) to devastate, destroy.
• v. (transitive) To squander (money or resources) uselessly; to spend (time) idly.
• v. (transitive, slang) To kill; to murder.
• v. (transitive) To wear away by degrees; to impair gradually; to diminish by constant loss; to use up; to…
• v. (intransitive) Gradually lose weight, weaken, become frail.
• v. (intransitive) To be diminished; to lose bulk, substance, strength, value etc. gradually.
• v. (law) To damage, impair, or injure (an estate, etc.) voluntarily, or by allowing the buildings, fences,…