She was known among friends as an agonizer, forever worrying and replaying every decision in her mind.

The ancient Greeks celebrated agones that tested both physical strength and rhetoric.

The ancient Greeks held many agons to celebrate athletic skill and civic pride.

When plotting the ship's course, the navigator marked the agonic line to avoid relying on magnetic bearings.

The paramedics recognized agonal respiration and immediately began CPR, knowing it often indicates cardiac arrest.

Cartographers marked the agonic lines on the map to indicate where magnetic north and true north coincide.