alleyway vs corridor

alleyway

noun
  • A passage between two rows of cabins in a ship. 

  • A narrow street formed by the proximity of adjacent buildings. 

corridor

noun
  • A narrow hall or passage with rooms leading off it, as in a building or in a railway carriage. 

  • Airspace restricted for the passage of aircraft. 

  • The covered way lying round the whole compass of the fortifications of a place. 

  • The land near an important road, river, railway line 

  • A restricted tract of land that allows passage between two places. 

How often have the words alleyway and corridor occurred in a corpus of books? (source: Google Ngram Viewer )