Urban Dictionary - Urban Dictionary is a Web-based dictionary of slang words and phrases.

Silicon Valley Dictionary - Urban dictionary meets Silicon Valley

Dictionary.com - Dictionary.com is the world’s leading digital dictionary. We provide millions of English definitions, spellings, audio pronunciations, example sentences, and word origins.

Meaning Monkey - Find the definition and meaning of anything.

SlangLang - SlangLang is an editorial dictionary for slang words mainly used on the internet. Here you will find definitions and information about the origin and spread of terms, memes and emotes that are used on the net.

Reverse Dictionary - Describe a concept and get back a list of words