archway

Short definition from Wiktionary

Noun

1. 1
   A passageway covered by an arch, particularly one made of masonry.
2. 2
   A doorway with a semilunar-shaped top.

Proper noun

1. 1
   A neighbourhood of Upper Holloway, borough of Islington, Greater London, England, centred on a gyratory system and underground station (OS grid ref TQ2986).