commuter vs pilgrim

commuter

noun
  • One who commutes (etymology 1). 

  • To and from work and home. 

  • Using public transport. 

  • Normally a short form of commuter rail, commuter train or commuter bus; A transport system or a vehicle in such systems used to transport commuters (#2) 

pilgrim

noun
  • One who travels, especially on a journey to visit sites of religious significance. 

  • A newcomer. 

  • A silk screen formerly attached to the back of a woman's bonnet to protect the neck. 

verb
  • To journey; to wander; to ramble. 

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