Embedded headwords within entries
Within sense content instances of terms may occur that are referred to as being similar to the main headword. This is not the same as a link to another entry, but is described as being equivalent to a headword. Capture this embedded content using the headword element and capture the type using the role attribute.
//p/headword
Only use the role attribute if it is you can clearly distinguish the nature of the content. The types are listed for headword types.