Vocabulary Builder is a feature that allows you to hide all the words in the app except for the ones you choose to teach. Although it is a powerful teaching tool, it is recommended that the device user have some time to explore the system with Vocabulary Builder turned off.
Create a List of Words to Teach
From Unity AAC, select Menu and Vocab Builder. The Vocab Builder window opens.
Select the On/Off toggle at the top corner of the window to toggle ON Vocab Builder.

Tap in the Search field to open the keyboard.
Type a word (or partial word) you want to teach in the search window

Select the word you want from the list or select Search on the keyboard.
You can display the Keyboard or Word Finder button by toggling ON Keyboard or Word Finder in the menu.

When you finish adding words, select Done. Only buttons for the words you selected will appear in your vocabulary.
When you toggle OFF Vocab Builder, all the hidden words will be visible again.
Remove Words from a List
Select Edit. A red icon appears in front of each word.

Select the red icon for the word for the word you want to delete. “Delete” will appear after the list name.
Select Delete to remove the word from the list.
Select Clear to remove all words from the list.
Select Done to return to the vocabulary.
Load a List
To view the lists you have created, select Load from the Vocab Builder window.

Select the list to be loaded.
Use the On/Off toggle button in the top corner of the Vocab Builder window to toggle ON Vocab Builder.
Select Done to return to the vocabulary.
Share a List
To share the current list, select Share from the Vocab Builder window.

Select the method you want to use to share the list.
AirDrop®: Bluetooth® and Wi-Fi® must be active. You will see the nearby devices that have AirDrop on and can accept your file. Choose the device you want.
Google Drive™: Requires Google Drive set up on the device and access to Wi-Fi.
Email: Requires an email account set up on the device and access to Wi-Fi.