nihilism

n [U] 1 total rejection of all religious and moral beliefs （否认一切宗教信仰和道德观念的）虚无主义. 2 belief that nothing really exists （否认一切存在的）虚无主义.

night-school, night-shirt, night-soil, night-staff, night-time, night-watch, night-watchman, nightcap, nightfall, nightgown, nightie (also nighty), nightingale, nightjar, nightly, nightmare, nightmarish, nights, nightshade, nightshirt, nightstick, nihilist, nihilistic, nil, Nile, nimble, nimbleness, nimbly, nimbus, nincompoop, nine, nine-, ninepin, nineteen, nineteenth, ninetieth, ninety, ninny, ninth, ninthly, nip,