Top-level (adjective)

Being at the highest level, especially in a hierarchy or system of organization.

Origin:

Late 20th century: from top + level.

Examples:

1. The CEO is a top-level executive in the company.
2. The top-level manager was responsible for making strategic decisions.
3. The top-level domain of a website is the suffix, such as .com or .org.
4. Only top-level members of the organization were invited to the meeting.
5. Top-level security measures were taken to protect the president during his visit.