Group (1) - Spelling Practices

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(1) (연마재) rubbing away; tending to grind down
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(2) (매운) unpleasantly sharp or bitter to taste or smell; bitterly pungent
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(3) (고소 공포증) fear of heights; abnormal fear of high places
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(4) (경감) provide physical relief, as from pain; make easier; remove in part
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(5) (모호함) state of being ambiguous; doubtfulness or uncertainty
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(6) (친선) friendship; peaceful relations, as between nations
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(7) (진통) serving to reduce sensibility to pain without loss of consciousness
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(8) (임의) randomly chosen; determined by chance or impulse, and not by reason or principle
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(9) (촌티 나는) rude and clumsy in behavior; ungentlemanly; awkward in manners
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(10) (브로치) introduce; bring up for discussion or debate; announce