The philosophers debated whether multiple first causes could explain the universe's origin.

The teacher corrected his first finger placement to improve intonation on the violin.

The archivist catalogued the first contacts reported by explorers across the new continent.

The hundred-and-first visitor received a special badge.

The new tablet's touch-first interface made navigation effortless for elderly users.

First Peoples across the region gathered to share their stories and music at the annual cultural festival.

As a committed first-waver, she campaigned tirelessly for women's suffrage and equal rights.

During the first watch, the crew rotated duties to keep the ship safe through the night.

The pilot executed a nose-first landing after the engine failed.

The sled slid down the slope nose-first, carving a shallow trench in the snow.