A really fast dictionary... fast like a ninja.
Ninjas are three things:
Ninjawords is based on these principles. Plus everyone likes ninjas.
You can compare definitions by looking up many words on the same page. Type them one by one and hit enter, or type them all at once in the search box, separated by commas.
In fact, you can just type the words you want to look up right into the address bar:
You can create a list of word definitions all on one page (try using it to keep track of SAT vocab words you're having trouble with). You can then bookmark it, or send the link to others.
The definitions come from the fast-growing Wiktionary. If Wiktionary does not have the definition, we fall back to the free and open Princeton WordNet dictionary.
We're deciding on whether to offer an API, and if so, what kind. Suggestions are welcome.
Ninjawords is written by Phil Crosby. Read why he built it.
You can report bugs, suggest features, or inquire about teaming up. I'd love to hear from you.