Ninjawords is improving internally every month to increase its speed, reduce its footprint and add more features. Here are some of the changes introduced:

Dec 19, 2010

Audio pronunciations — for many words you find on Ninjawords, you can now listen to how they are pronounced.
A new tips & tricks page full of ninja secrets.

July 22, 2010

Add support for iPhone 4 in the Ninjawords iPhone app.

July 28, 2009

The Ninjawords iPhone app launches, despite much controversy.

April 15, 2009

Support more words and more links within definitions.

Feb 13, 2009

New condensed presentation for definitions.
More fresh definitions, and lots of bug fixes for displaying those definitions.

Nov 4, 2007

Overhaul the site to be smaller and faster.

Sep 9, 2007

Add support for the iPhone browser.

April 4, 2007

Upgrade the history to support multiple pages.

Feb 26, 2007

Added a history - keep track of previous lookups using the history.
Support browsers with javascript disabled.

Jan 19 2007

You can now add Ninjawords directly to your browser's search bar.
Synonyms! Serve up erudite insults at an alarming rate.
Better support for Internet Explorer 6.

Dec 3, 2006

All lookups are now spellchecked.

Nov 27, 2006

Wiktionary is now being used exclusively instead for all definitions.
Click a word in the body of a definition to look up that word.
Speed improvements.

Nov 15 2006

Ninjawords launches. Welcome to the adventure!