Historical Dictionary of Science Fiction

A fascinating crowdsourced project. You can read the backstory in this article in Wired magazine.

Very Dictionary. Because ‘very’ makes your writing stale.

Improve your word power:

Using ‘very’ + adjective makes your writing stale. This dictionary finds you a less dull, alternative word. It’ll help make your writing more convincing and engaging.

Sideways Dictionary

This is a rather lovely idea—technical terms explained with analogies.

I just finished writing something about HTTPS and now I wish I had used this.

The dictionary of obscure sorrows

Ennuitastic.

Lexadecimal

Hexadecimal colours and their corresponding dictionary definitions. Cute.

Announcing Typo.js: Client-side JavaScript Spellchecking

This could be a handy: a client-side spellchecker. The dictionary files are a bit big of course—maybe local storage could help.

Addictionary :: What's your word?

It's The Meaning Of Liff all over again. Creating and rating neologisms.

The Septic's Companion - A mercifully brief guide to British culture and slang

British English slang dictionary with translations into American English.

Science Fiction Citations for OED

Put all those years of reading science fiction to use. Help track down first usage of sci-fi terms.

Merriam-Webster Online

The word w00t has been voted Merriam-Webster word of the year 2007. Slow year.

Happy Cog Studios: Work: Dictionary.com

Happy Cog redesigns Dictionary.com and its siblings.