Dictionary.com | www.dictionary.com
A simple, easy-to-navigate dictionary.
Merriam-Webster | www.merriam-webster.com
The granddaddy of dictionaries, which includes pronunciations and first known uses.
OneLook Dictionary | www.onelook.com
The dictionary of dictionaries that combines results from multiple sources.
Sideways Dictionary | https://sidewaysdictionary.com
A dictionary of technology terms.
Thesaurus.com | www.thesaurus.com
The sister site to Dictionary.com. Easy to search and discover words.
OneLook Thesaurus | www.onelook.com/thesaurus
A powerful thesaurus, which will help you generate lists of loosely related words.
Moby | http://moby-thesaurus.org
A thesaurus into the unusual. It is a reference full of unusual word relationships.
Play with Words
RhymeZone | www.rhymezone.com
A rhyming dictionary. It’s never been so easy to play with words.
Etymology Online | www.etymonline.com
The etymology and history of English words.
Google Translate | https://translate.google.com
An easy-to-use tool to browse foreign-language translations.
Linguee | www.linguee.com
A valuable translation dictionary with over 1 million reliable translations.
Avoid Bad Words
Word Safety | http://wordsafety.com
Search across multiple languages to ensure your name isn’t in offensive in a foreign language.
Urban Dictionary | www.urbandictionary.com
A goldmine of slang and bad words. Find out if your name means something inappropriate.
Green’s Dictionary of Slang | https://greensdictofslang.com
Similar to Urban Dictionary, you can search for slang terms and what different phrases might mean.
WIPO Global Brand Database | www.wipo.int/branddb/en/index.jsp
Search trademarks across international jurisdictions.
Justia Trademarks | https://trademarks.justia.com
A free search tool for United States trademarks.
TESS: Trademark Electronic Search System | http://tmsearch.uspto.gov
The United States Patent and Trademark Office’s official trademark search tool.
Canadian Trademarks Database | www.ic.gc.ca/app/opic-cipo/trdmrks/srch/home
The Government of Canada’s office trademark search tool.
Markify | www.markify.com
A paid trademark search engine. It delivers more sophisticated tools than free offerings.
Domains, Apps, and Social Media
Panabee | www.panabee.com
Search for domain names, app names, and company names all at once.
I Want My Name | https://iwantmyname.com
A powerful domain search engine to view a name’s availability across multiple top-level domains.
Domain Maker | www.bustaname.com/word_maker
A useful wizard for generating available domain names based on descriptors of or words associated with your core brand name.
KnowEm | https://knowem.com
Check to see if your brand name is available as a vanity URL on over 500 popular social networking sites.