The <glossentry> element defines
a single sense of a glossary term. Glossary entries for different
term senses can be reused independently of one another. DITA
1.2 adds several elements to the glossentry topic type, allowing it
to specify additional information about a term (beyond just the definition).
The <glossAlt> element contains a variant term for the
preferred term. The variant should have the same meaning as the term
in the <glossterm> element; the variant is simply another way to
refer to the same term. There may be many ways to refer to a term;
each variant is placed in its own <glossAlt> element. The <glossUsage>
element may be used within <glossAlt> to indicate when use of the
alternate term is appropriate.
The <glossPartOfSpeech> element identifies the part
of speech for the preferred and alternate terms. Alternate terms must
have the same part of speech as the preferred term because all terms
in the glossentry topic designate the same subject. If the part of
speech isn't specified, the default is a noun for the standard enumeration.
The <glossScopeNote> element contains a clarification
of the subject designated by the <glossterm>,
such as examples of included or excluded companies or products. For
instance, a scope note for "Linux" might explain that the term doesn't
apply to UNIX products and may give some examples of Linux products
that are included as well as UNIX products that are excluded.