Autocompletion Vs. Autoexpansion

See Also
Defining shorthands

IntelliComplete prompts you both words/phrases and shorthands matching the prefix you've typed. Words/phrases are retrieved from the word libraries, i.e., language libraries and professional libraries. Shorthands are retrieved from shorthand libraries. Word libraries are used for autocompletion while shorthand libraries are used for autoexpansion. 

How are they different?

When you autocomplete a word or a phrase, what IntelliComplete does is to COMPLETE the rest part of the word or phrase for you. For example, you've input "int" and you choose to autocomplete the word "interesting". IntelliComplete will auto-type "eresting" for you.

When you autoexpand a shorthand, IntelliComplete will expand the shorthand into its full form. What IntelliComplete does is to REPLACE the shorthand prefix with its full text. For example, you've input "asap" and you want it to expand into "as soon as possible". IntelliComplete will clear "asap" first and auto-type "as soon as possible" for you.

Default Prompt Mode

IntelliComplete may find both matching words and shorthands for the same prefix. In this case, IntelliComplete will prompt words/phrases or shorthands based on the default prompt mode. You can set the default prompt to be word/phrase or shorthand in the prompt page of the options dialog. Press the toggle-prompt-mode hotkey to switch to the other prompt mode for the current word. When you begin a new word, the prompt mode will be restored to the default setting in the options dialog.

You can type a special symbol ($ by default) at the beginning of the prefix to force it to be treated as a shorthand prefix. For example, $asap. You can change this special symbol in the Misc page of the options dialog.