Google Docs now helps you quickly find dictionary, thesaurus, encyclopedia matches, plus webpage and image search results for words or phrases.

We've also added the ability to create a table of contents for documents.

Editions impacted:
Standard, Premier, Education, Team and Partner Editions

Languages impacted:
US English

How to access what's new:
For the lookup functions, highlight a word or phrase, click the 'Tools' menu and choose the 'Look up word' or 'Search the web for word' options.

To add a table of contents, click the 'Insert' menu and choose 'Table of contents'.

For more information:
http://documents.google.com/support/bin/topic.py?topic=15125
http://documents.google.com/support/bin/answer.py?hl=en&answer=106342