monument vs stupa

monument

noun
  • An important burial vault or tomb. 

  • A pile of stones left by a prospector to claim ownership of ore etc. found in a mine. 

  • Any grave marker. 

  • A surveying reference point marked by a permanently fixed marker (a survey monument). 

  • A surviving record. 

  • An exceptional or proud achievement. 

  • A natural or artificial object used as a reference point. 

  • A legal document. 

  • An important site owned by the community as a whole. 

  • A structure built for commemorative or symbolic reasons, or as a memorial; a commemoration. 

verb
  • To mark or memorialize with a monument. 

stupa

noun
  • A dome-shaped Buddhist monument, used to house relics of the Lord Buddha. 

  • A stupe (medicated cloth or sponge). 

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