Group (U V W Y Z) - Spelling Practices

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(1) a. (자외선) wave lengths shorter than light but longer than X rays
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(2) a. Syn. violent(위반을) violent; not restrained or controlled
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(3) a. (무조건) made without condition; absolute; unreserved
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(4) v. Syn. undervalue(과소 평가) make too low an estimate of the quantity; undervalue
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(5) n. Syn. speech(발언) vocal expression; power of speaking; last or utmost extremity
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(6) n. (밸브) device or structure for controlling the flow of a fluid 
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(7) n. Syn. border; edge(직면) extreme edge or margin; border; enclosing boundary; space enclosed by such a boundary
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(8) n. Syn. trace(자취) trace; remains; indication that something has been happened
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(9) n. (바이러스) disease communicator; something that poisons one's soul or mind; program for unwanted actions in computer
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(10) n. Syn. viscidity; stickiness(점성) resistance of a liquid to shear forces; physics coefficient of viscosity; quality of flowing slowly