The mason repaired the jack arch beneath the loading dock to prevent the floor from sagging.

The council declared him an arch-heretic and exiled him from the city.

The cathedral's bell arch cast an unusual shadow across the nave during the afternoon sun.

The biologist carefully examined the gill arch under the microscope to study the arrangement of filaments.

The forensic artist examined the skull and noted that the zygomatic arches were unusually pronounced.

The ancient cathedral's oblique arches gave the nave an unexpected, dynamic rhythm.

The documentary explored the deep arch rivalries that shaped the city's football culture.

The annual tournament highlighted several arch-rivalries that had defined the league for decades.

The arch-rivalry between the two chess grandmasters drew crowds to the tournament hall.

The arch rivalry between the two teams dates back to a match played a century ago.