| backgammon | (noun) a board game for two players; pieces move according to throws of the dice | - |
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| background | (noun) scenery hung at back of stage | Synonyms: backcloth, backdrop |
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| (noun) (computer science) the area of the screen in graphical user interfaces against which icons and windows appear | Synonyms: desktop, screen background |
| (noun) a person's social heritage: previous experience or training | - |
| (noun) the part of a scene (or picture) that lies behind objects in the foreground | Synonyms: ground |
| (noun) information that is essential to understanding a situation or problem | Synonyms: background knowledge |
| (noun) extraneous signals that can be confused with the phenomenon to be observed or measured | Synonyms: background signal |
| (noun) relatively unimportant or inconspicuous accompanying situation | - |
| (noun) the state of the environment in which a situation exists | Synonyms: scope, setting |
| backgrounder | (noun) a press conference or interview in which a government official explains to reporters the background of an action or policy | - |
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| backgrounding | (noun) the execution of low priority programs while higher priority programs are not using the processing system | Synonyms: background processing |
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| blackguard | (noun) someone who is morally reprehensible | Synonyms: bounder, cad, dog, heel, hound |
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| dkg | (noun) 10 grams | Synonyms: dag, decagram, dekagram |
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| ginkgo | (noun) deciduous dioecious Chinese tree having fan-shaped leaves and fleshy yellow seeds; exists almost exclusively in cultivation especially as an ornamental street tree | Synonyms: gingko, Ginkgo biloba, maidenhair tree |
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| kg | (noun) one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites | Synonyms: kilo, kilogram |
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| quackgrass | (noun) European grass spreading rapidly by creeping rhizomes; naturalized in North America as a weed | Synonyms: Agropyron repens, couch grass, dog grass, quack grass, quick grass, witch grass, witchgrass |
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| silkgrass | (noun) valuable forage grass of dry upland areas and plains of western North America to northern Mexico | Synonyms: Indian millet, mountain rice, Oryzopsis hymenoides, silk grass |
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