Here is a list of all namespaces with brief descriptions:

[detail level 12345]

watchdog
watcherSource_cfi
WDecay
WE_13TeV_TuneCUETP8M1_cfi
WE_14TeV_TuneCUETP8M1_cfi
WE_8TeV_TuneCUETP8M1_cfi
WE_cfi
web
app_utils
browse_db
dbfile2html
web_templates
weight
WElectronSkim_cff
Wjet_Pt_3000_3500_13TeV_TuneCUETP8M1_cfi
Wjet_Pt_3000_3500_14TeV_TuneCUETP8M1_cfi
Wjet_Pt_3000_3500_8TeV_TuneCUETP8M1_cfi
Wjet_Pt_3000_3500_cfi
Wjet_Pt_80_120_13TeV_TuneCUETP8M1_cfi
Wjet_Pt_80_120_14TeV_TuneCUETP8M1_cfi
Wjet_Pt_80_120_8TeV_TuneCUETP8M1_cfi
Wjet_Pt_80_120_cfi
wlhe2HepMCConverter_cff
WM_13TeV_TuneCUETP8M1_cfi
WM_8TeV_TuneCUETP8M1_cfi
WM_cfi
WMuSkim_cff
WorkFlow
WorkFlowRunner
wplusjetsAnalysis_cfg
wplusjetsAnalysis_cfi
WpM_13TeV_TuneCUETP8M1_cfi
WpM_8TeV_TuneCUETP8M1_cfi
WprimeToENu_M-2000_TuneCUETP8M1_13TeV-pythia8_cff
WprimeToLNu_M2000_14TeV_TuneCP5_pythia8_cfi
WprimeTolNu_M3000_13TeV_pythia8_cff
writedatasetfile
writeEcalDQMStatus
writelibraryfile_cfg
ws_sso_content_reader
WTolNu01234Jets_5f_LO_MLM_Madgraph_LHE_13TeV_cff
WTolNu012Jets_5f_LO_MLM_Madgraph_LHE_13TeV_cff
WToLNu_13TeV_pythia8_cff
WToLNu_14TeV_TuneCP5_pythia8_cfi
WToMuNu_14TeV_TuneCP5_pythia8_cfi
WValidation_cff
WValidation_cfi
WZEGSkim_cff
WZElectronSkims53X_cff
WZElectronSkims_cff
WZinterestingEventFilter_cfi
WZMuSkim_cff