N字開頭的單詞或詞組
NPPnubilityno errornighty-nightnullablenitritenumber lockno-faultnauseatingnavigationalnasusnarcnarrowingnoise reductionnakednessneurobiologyno connectionnitrous oxidenitrousnew technologyno-goodno-callnonlivingNPDneurologistNormandynecktieNobel's explosiveNMSnogginnarcissistNational Aeronautics and Space Administrationnegusnose-diveNikkeinotarial certificatenewly-builtnebulizernosediveNCUnone the wiserNelaton's line