In the Navigation Pane, click Lists, and then click Lexical Relations.
Do one of the following:
On the Insert toolbar, click .
On the Insert menu, click Lexical Relation.
A new lexical relation type is added with empty fields.
In the Lexical Relation pane, enter a name in the Name field and an abbreviation in the Abbreviation field.
In the Reference set type field, select the appropriate set type.
If the set type uses two names, enter a Reverse Name and Reverse Abbreviation. (For example, a type named Parts would have a reverse name of Whole.)
Enter content in the Description and Discussion fields.