Group (O P) - Spelling Practices

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(1) v. Syn. besiege(одержимы) preoccupy the mind of excessively; besiege; compass about; dominate the thoughts of someone
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(2) a. (оптические) of or relating to or involving light or optics
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(3) a. (дополнительно) not obligatory; left to choice; not compulsory or automatic
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(4) n. (органа) natural part or structure in animal or plant, capable of performing some special action
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(5) a. Syn. obvious; apparent(Патент) open for the public to read; obvious; plain
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(6) n. Syn. payment; tribute(пенсионных) something paid or given; payment to a person in consideration of past services
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(7) a. Syn. destructive(чумной) tending to produce infectious disease; destructive
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(8) v. (поляризации) split into opposite extremes or camps
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(9) n. (попкорн) small kernels of corn exploded by heat
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(10) a. Syn. principal; dominant; overpowering(преобладает) most frequent or common; having superior power and influence