A really fast dictionary... fast like a ninja.
Ninjas are three things:
Ninjawords is based on these principles.
Ninjawords is optimized to return a definition instantly as soon as you hit enter, and your search is spellchecked in multiple ways until we find a good match. Ninjas like to stay lean and mean, which is why there is no junk cluttering your dictionary, slowing you down.
All definitions come from the ever-expanding Wiktionary data set.
See the announcements page.
Look up multiple words at once by separating them with commas:
In fact, you can just type the words you want to look up right into your browser's address bar:
You can save a page full of definitions (say, for keeping track of SAT vocabulary) and bookmark it or send the link to your aunt:
In most web browsers, you can add Ninjawords directly to your search box: