Here is a list of all namespaces with brief descriptions:

[detail level 12345]

nameDealer
NavigationSchoolESProducer_cff
NavigationSchoolESProducer_cfi
NbTarget_cfi
negativeCombinedInclusiveSecondaryVertexBJetTags_cfi
negativeCombinedInclusiveSecondaryVertexV2BJetTags_cfi
negativeCombinedMVABJetTags_cfi
negativeCombinedMVAComputer_cfi
negativeCombinedSecondaryVertexBJetTags_cfi
negativeCombinedSecondaryVertexComputer_cfi
negativeCombinedSecondaryVertexV2BJetTags_cfi
negativeCombinedSecondaryVertexV2Computer_cfi
negativeOnlyJetBProbabilityBJetTags_cfi
negativeOnlyJetBProbabilityComputer_cfi
negativeOnlyJetProbabilityBJetTags_cfi
negativeOnlyJetProbabilityComputer_cfi
negativeSimpleInclusiveSecondaryVertexHighEffBJetTags_cfi
negativeSimpleInclusiveSecondaryVertexHighPurBJetTags_cfi
negativeSimpleSecondaryVertexHighEffBJetTags_cfi
negativeSimpleSecondaryVertexHighPurBJetTags_cfi
negativeTrackCounting3D2ndComputer_cfi
negativeTrackCounting3D3rdComputer_cfi
negativeTrackCountingHighEffBJetTags_cfi
negativeTrackCountingHighPurBJetTags_cfi
NeutronBGforMuonsHP_cff
NeutronBGforMuonsXS_cff
neutronHitsCollector_cfi
neutronSimHitsProcessing_cff
newFWLiteAna
NewTree
nJettinessAdder_cfi
NMaxPerLumi_cfi
noAbortPDGid_custom
NodeCut
NoHcalZeroSuppression_cff
NoiseFromExampleXmlFile_cff
NoiseRatesClient_cfi
noiseSimValid_cff
NominalCollision1VertexGenerator_cfi
NominalCollision2VertexGenerator_cfi
NominalCollision3VertexGenerator_cfi
NominalCollision4VertexGenerator_cfi
NominalCollisionVertexGenerator_cfi
nonIsolatedZToMuMu_cfi
noPuUtils
normDML
normFileParser
normFunctors
NoVertexGenerator_cfi
noZS
npstat
Private
ntuple_cff
ntuplemaker
nuclear_cff
NuclearInteraction_cff
NuclearInteraction_cfi
NuclearInteractionSecond_cff
nuclearRemainingHits_cff
NuclearSeed_cfi
NuclearTrackCorrector_cfi