Use the Synonyms dialog to select synonyms or antonyms as keywords. This dialog is available from the Smart Index Wizard - "topic name" dialog (the dialog that is open when you are viewing suggested keywords for a topic).
Word: Specifies the keyword used for finding synonyms. For example, BRIGHT.
Note: This field is also a text box. You can enter text and click Look up to view a list of synonyms for different words.
Look up: Displays a list of synonym categories and synonyms for the item displayed in Word.
Antonyms: Displays a list of antonyms for the item displayed in Word. Antonyms appear below all synonyms. For example, antonyms for BRIGHT include dim (adjective), dejected (adjective), and painful (adjective).
Categories: Displays word categories for synonyms. For example, synonyms for BRIGHT include bright (adjective), cheerful (adjective), pleasurable (adjective).
Synonyms: Displays all words that are associated with a synonym category. For example, the synonym category BRIGHT (ADJECTIVE) includes words like beaming, blazing, bright, brilliant, flashing, gleaming, glinting, and so on.
Add to Topic: Adds the selected synonym as a keyword to the topic.