essential

Like military personnel, federal law enforcement officers are considered "essential" and are still expected to report for duty, even without pay.

In a time when contentious terminology pervades public discourse, the astute chronicling and monitoring of language is essential.

This region is essential for communication between brain networks but is also vulnerable to reduced blood flow from distal arteries, which carry blood from the heart to the outermost parts of the body.

Balancing old and new approaches will be essential in staying resilient or rebuilding protections against AI-powered threats.

Both parties were evenly represented; those interviewed had held essential jobs in every presidential administration since Ronald Reagan.