Group (E F) - Spelling Practices

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(1) a. (生態学) of or relating to the science of ecology; characterized by the interdependence of living organisms in an environment
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(2) n. (経済) branch of social science that deals with the production and distribution and consumption of goods and services and their management 
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(3) n. (弾性) tendency of a body to return to its original shape after it has been stretched or compressed
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(4) n. Syn. radiation; emanation; discharge(発光) radiation; discharge; act of emitting
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(5) n. Syn. businessperson; enterprise(起業家) person who organizes and operates a business; contractor
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(6) a. Syn. necessary; critical; vital; indispensable; fundamental(必須) necessary; critical; vital; constituting or being part of the essence of something
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(7) n. Syn. morals; principles(倫理) morals; study of principles relating to right and wrong conduct.
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(8) a. Syn. outstanding; splendid(優秀) surpassing others in some good quality or the sum of qualities; of great worth; eminent, in a good sense
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(9) a. Syn. extra; surplus(過剰) amount or quantity beyond what is normal or sufficient; surplus
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(10) a. Syn. nonexistent; vanished; dead(絶滅) no longer existing or living; vanished; dead