1. Google the word, phrase or term you are about to register and see how it is used on other English language sites. 2. Use an online English dictionary. 3. Think of the word order if it is a 2 word domain name. 4. Ask some friends or family members who are good at English. 5. If it is a slang term then try to find examples on how it is used. Try the Urban Dictionary. 6. Make sure it doesn't sound totally ridiculous to a customer if you intend to sell it. I speak a few languages myself and need to check my English sometimes too. It's easy to make a mistake. Double check always if you are using several languages each day.