The arch-heretics were known for their radical beliefs.

Superman and Lex Luthor are arch enemies.

The city was plagued by a gang of arch rogues.

The arch-pirates sailed the seven seas in search of treasure.

There are many arch-sexists in the world.

Arctic cods are small fish that live in the cold waters of the Arctic Ocean.

Arctic fronts are responsible for bringing cold air from the polar regions.

Arctic poppies bloom in the spring.

Arctic skuas are migratory birds that breed in the Arctic regions.

The house is roofed with architectural shingles.