Node:synindex, Previous:syncodeindex, Up:Combining Indices
@synindexThe @synindex command is nearly the same as the
@syncodeindex command, except that it does not put the
`from' index entries into the @code font; rather it puts
them in the roman font. Thus, you use @synindex when you
merge a concept index into a function index.
See Printing Indices & Menus, for information about printing an index at the end of a book or creating an index menu in an Info file.