Sunrise period, also known as the initial registration period, is a term used in the domain name industry to refer to a limited timeframe during which trademark holders can apply for a specific domain name before it becomes available to the general public. There are several synonyms for the term sunrise period, including trademark clearinghouse period, priority registration period, and trademark claims period. Each term emphasizes a specific aspect of the registration process, highlighting different phases and requirements. For instance, the trademark clearinghouse period focuses on the need for trademark verification, while the priority registration period emphasizes the exclusivity of the registration window. Regardless of the synonym used, all these terms refer to a critical period that helps protect intellectual property rights and ensures a fair and transparent domain name registration process.