Similar words: impugn, repugnant, pugnacity, repugnance, pugnacious, pug, yom kippur, suppuration. Meaning: [ɑ'pjuːn /ɒ'p-] 
v. challenge the accuracy, probity, or propriety of.
v. challenge the accuracy, probity, or propriety of. 
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1. All competitors are not allowed to oppugn or and have counterview with judges on site. Only written appeal for re-judgment is incepted after the competition.
2. People govern garbage mail have becometogether oppugn Internet virus important task.
3. This paper aims to oppugn and criticize the above ideas.
4. Students should be encouraged to oppugn and break the traditional experience and structure of knowledge.
5. But the lower rate of success makes more and more enterprises oppugn its applicability.
6. One stone arouses 1000 billow, the tentative idea causes a mighty uproar very quickly in the whole nation, nod eulogist has, shake one's head the person that oppugn has.
7. The structure designed by Cecil Balmond ex - presses uncertainty and fluidity, which oppugn the stabilityof Cartesian system.
8. Secondly, discourse upon Chinese style house 'evolution track, realism status, as well as its existent problem and design lurch, and bring forward some mutuality oppugn.
More similar words: impugn, repugnant, pugnacity, repugnance, pugnacious, pug, yom kippur, suppuration, cappuccino, pugilist, pugilism, appurtenant, yom kippur war, sump pump, copper, hopper, poppy, popper, poppet, floppy, shopper, oppose, popped, topple, sloppy, choppy, stopped, topping, sopping, popping.