N

nameCommand
nameField
namespace
namespaceInfo
nBase
nClothConvertOutput 
nClothVertexEditor 
newton
nextOrPreviousFrame 
nodeCast
nodeEditor
nodeIconButton
nodeOutliner
nodePreset
nodeTreeLister
nodeType
noise
nonLinear
normalConstraint
normalize 
nParticle
nurbsBoolean
nurbsCopyUVSet
nurbsCube
nurbsCurveToBezier
nurbsEditUV
nurbsPlane
nurbsSelect
nurbsSquare
nurbsToPoly
nurbsToPolygonsPref
nurbsToSubdiv
nurbsToSubdivPref
nurbsUVSet
nurbsViewDirectionVector 

indicates a MEL script