How to Avoid Trademark Infringement in Domain Name?

I want to name a website "word1BIGNAME.com", with "bigname" being a very widely known website.

"word1" is a word like "fix", "improve" "repair" and the purpose of the site is to improve the "bigname". I know that "walmartsucks" is legal, and am wondering where the line is drawn.

malakmedia said:

You can send me in PM for tell you

Click to expand...

you can't even send a pm.

usually "BIGNAME" owner use UDRP at start and he must prove all 3 moments:
1) your domain name is identical or confusingly similar to a trademark or service mark in which the complainant has rights; and 2) you have no rights or legitimate interests in respect of the domain name; and

3) your domain name has been registered and is being used in bad faith.
so just check all these 3 moments at your website (of course 1 moment exactly will be prove by owner, but you will have chance at other 2 and 3 moments)

Here is a hint.. Freedom of Speech