Here is a list of all namespaces with brief descriptions:

[detail level 1234]

Nax
Ncocos2d
Pcom
Ndoctest
Ndetail
Ntypes
NbinaryAssertComparison
NassertAction
NColor
NassertType
NTestCaseFailureReason
Ndoctest_detail_test_suite_ns
NfsCMaths
NfsCRunningOrderGrammar
NfsN3d
NfsNAxmolRenderView
NfsNBgfx2d
NfsNBgfxWindow
NfsNCollision
NfsNCoreUtils
NfsNHogCoreCommon
NfsNMaths
NfsNRnd
NfsNTileMap
NgfNPhotoCapture
NIAPImpl
NImage2Map
NMapWriter
NODRImpl
Nstd
NSystemImpl
NYAML