Here is a list of all namespaces with brief descriptions:

[detail level 12345]

watchdog
watcherSource_cfi
WDecay
WE_13TeV_cfi
WE_13TeV_TuneCUETP8M1_cfi
WE_14TeV_cfi
WE_7TeV_cfi
WE_8TeV_cfi
WE_8TeV_TuneCUETP8M1_cfi
WE_cfi
web
app_utils
browse_db
dbfile2html
web_results_display
web_templates
webApp
weight
WElectronSkim_cff
Wjet_Pt_3000_3500_13TeV_cfi
Wjet_Pt_3000_3500_13TeV_TuneCUETP8M1_cfi
Wjet_Pt_3000_3500_14TeV_cfi
Wjet_Pt_3000_3500_7TeV_cfi
Wjet_Pt_3000_3500_8TeV_cfi
Wjet_Pt_3000_3500_8TeV_TuneCUETP8M1_cfi
Wjet_Pt_3000_3500_cfi
Wjet_Pt_80_120_13TeV_cfi
Wjet_Pt_80_120_13TeV_TuneCUETP8M1_cfi
Wjet_Pt_80_120_14TeV_cfi
Wjet_Pt_80_120_7TeV_cfi
Wjet_Pt_80_120_8TeV_cfi
Wjet_Pt_80_120_8TeV_TuneCUETP8M1_cfi
Wjet_Pt_80_120_cfi
wlhe2HepMCConverter_cff
WM_13TeV_cfi
WM_13TeV_TuneCUETP8M1_cfi
WM_14TeV_cfi
WM_7TeV_cfi
WM_8TeV_cfi
WM_8TeV_TuneCUETP8M1_cfi
WM_cfi
WminusToENu_7TeV_mcatnlo_cff
WminusToENu_8TeV_mcatnlo_cff
WminusToMuNu_7TeV_mcatnlo_cff
WminusToMuNu_8TeV_mcatnlo_cff
WMuNuSelection_cff
wmunusProducer_cfi
WMuSkim_cff
wordWrappers
WorkFlow
WorkFlowRunner
wplusjetsAnalysis_cfg
wplusjetsAnalysis_cfi
WplusToENu_7TeV_mcatnlo_cff
WplusToENu_8TeV_mcatnlo_cff
WplusToMuNu_7TeV_mcatnlo_cff
WplusToMuNu_8TeV_mcatnlo_cff
WpM_13TeV_cfi
WpM_13TeV_TuneCUETP8M1_cfi
WpM_8TeV_cfi
WpM_8TeV_TuneCUETP8M1_cfi
WprimeToENu_M-2000_TuneCUETP8M1_13TeV-pythia8_cff
WprimeTolNu_M3000_13TeV_pythia8_cff
writeAntiElectronDiscrMVA_cfi
writeAntiMuonDiscrMVA_cfi
writeEcalDQMStatus
writelibraryfile_cfg
writeTauIdDiscrMVA_cfi
ws_sso_content_reader
WToENu_TuneD6T_7TeV_pythia6_cff
WTolNu01234Jets_5f_LO_MLM_Madgraph_LHE_13TeV_cff
WToLNu_13TeV_pythia8_cff
WToLNu_Tune4C_8TeV_pythia8_BFromMPIFilter
WToLNu_TuneD6T_7TeV_pythia6_cff
WToLNu_TuneD6T_7TeV_pythia6_tauola_cff
WToLNu_TuneZ2_7TeV_pythia6_tauola_cff
WToLNu_TuneZ2star_8TeV_pythia6_tauola_cff
WToMuNu_TuneD6T_7TeV_pythia6_cff
WValidation_cff
WValidation_cfi
WZEGSkim_cff
WZElectronSkims53X_cff
WZElectronSkims_cff
WZinterestingEventFilter_cfi
WZMuSkim_cff