The best way to avoid trademark conflicts is to search the trademark databases. They will provide you with all registered and pending trademarks.
The regulations governing copyright issues for domain names are governed by the Internet Corporation for Assigned Names and Numbers (ICANN).
You will most likely lose the right to register your domain name if:
▸ You have intentionally chosen a name that is similar to another domain name or trademark to create consumer confusion.
▸ You do not carry on business under that name.
▸ Neither you nor any other person in your business carries the same or a similar name.
▸ You plan to sell that domain name to your competitor for financial gain.
▸ More information about the ▸ Uniform Domain Name Dispute Resolution Policy – https://www.icann.org/resources/pages/policy-2012-02-25-en