What are some alternatives?
When comparing Urban Dictionary and The Online Slang Dictionary, you can also consider the following products
Slang-Dictionary.org - Slang-Dictionary is a web-based database for searching through the database of slang words and learn how different words are getting different meanings in different countries of the world.
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.
SayWhat - A fun and informative Video Urban Dictionary.
Thesaurus.com - Definitions and Synonyms
Macmillian Dictionary and Thesaurus - The Free Online English Dictionary from Macmillan Publishers.
Spell It Out - Spelling out tech acronyms so you can be in the know.