This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A burned or partly burned substance, such as coal, that is not reduced to ashes but is incapable of further combustion.

n. A partly charred substance that can burn further but without flame.

n. Ashes.

n. Geology See scoria.

n. Metallurgy See scoria.

n. Slag from a metal furnace.

v. To burn or reduce to cinders.

n. Partially or mostly burnt material that results from incomplete combustion of coal or wood etc.

n. An ember.

n. Slag from a metal furnace.

v. to reduce something to cinders

n. Partly burned or vitrified coal, or other combustible, in which fire is extinct.

n. A hot coal without flame; an ember.

n. A scale thrown off in forging metal.

n. The slag of a furnace, or scoriaceous lava from a volcano.

n. A piece or mass of any substance that has been partially consumed or calcined by heat and then quenched: as, the cinder of a forge.

n. A small live coal among ashes; an ember.

n. pl. The mass of ashes, with small fragments of unconsumed coal interspersed, which remains after imperfect combustion, or after a fire has gone out. (See coke.)

n. plural In geology, coarse ash or scoriæ thrown out of volcanos. (See ash.) This material when solidified becomes tuff or tufa.

n. One of the scales thrown off by iron when it is worked by the blacksmith.

n. In metallurgy, slag, especially that produced in making pig-iron in the blast-furnace.

n. Any strong liquor, as brandy, whisky, sherry, etc., mixed with a weaker beverage, as soda-water, lemonade, water, etc., to fortify it; a “stick.”

n. a fragment of incombustible matter left after a wood or coal or charcoal fire

"To remedy this inconvenience, they make use of another material which they call cinder, it being nothing else but the refuse of the ore after the melting hath been extracted, which, being melted with the other in due quantity, gives it that excellent temper of toughness for which this iron is preferred before any other that is brought from foreign parts."

cindered    cindering    cinders   

fragment   

slag    buck-shot cinder    Cinderella    scoria   

cinder cone    cinder block   

ember    breeze    coaly    scorify   

hinder    tinder    winder   

slag    rubble    lava    gravel    ash    soot    sawdust    charcoal    grit    dirt