
Description of average (noun: plural: averages) mean; median
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Description of helicopter (noun: plural: helicopters) aircraft which flies by means of horizontally rotating blades
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Description of greenhouse (noun: plural: greenhouses) structure built mainly of glass in which plants are cultivated out of season
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Description of airways (noun: no plural) route through traveled by vehicles above ground level
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Description of craft (noun: plural: crafts) trade; skill; occupation; boat; plane
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Description of ambition (noun: plural: ambitions) aspiration; hope; goal; dream
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Description of license (noun: plural: licenses) permit; official permission; authorization; document which shows proof of authorization; certificate
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Description of rubber (noun: plural: rubbers) elastic material derived from of some tropical plants; eraser
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Description of picture (noun: plural: pictures) photograph; drawing; painting; film; embodiment
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Description of base (noun: plural: bases) foundation; principal element; fundamental part
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